Emergency Medicine

If you need immediate attention for a life-threatening illness or injury, you turn to emergency medicine, which is typically available 24 hours a day, seven days a week.

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Symptoms
Abdominal pain - children under age 12
Almost all children have abdominal pain at one time or another. Abdominal pain is pain in the stomach or belly area. It can be anywhere between the chest and groin. Most of the time, it is not caused by...

Injury
Abdominal thrusts
Choking is when someone is having a very hard time breathing because food, a toy, or other object is blocking the throat or windpipe (airway). A choking person's airway may be blocked so that not enough...

Poison
Acetaminophen and codeine overdose
Acetaminophen (Tylenol) and codeine is a prescription pain medicine. It is an opioid pain reliever used only for pain that is severe and is not helped by other types of painkillers. Acetaminophen and codeine...

Poison
Acetaminophen overdose
Acetaminophen (Tylenol) is a pain medicine. Acetaminophen overdose occurs when someone accidentally or intentionally takes more than the normal or recommended amount of this medicine. Acetaminophen overdose...

Poison
Acetone poisoning
Acetone is a chemical used in many household products. This article discusses poisoning from swallowing acetone-based products. Poisoning may also occur from breathing in fumes or absorbing it through the...

Self-Care Instructions
Achilles tendon rupture - aftercare
Heel cord tear; Calcaneal tendon rupture

Poison
Acid soldering flux poisoning
Acid soldering flux is a chemical used to clean and protect the area where two pieces of metal are joined together. Flux poisoning occurs when someone swallows this substance. This article is for information...

Diseases & Conditions
Acute mountain sickness
Acute mountain sickness is an illness that can affect mountain climbers, hikers, skiers, or travelers at high altitudes, usually above 8000 feet (2400 meters).

Poison
Adrenergic bronchodilator overdose
Adrenergic bronchodilators are inhaled medicines that help open up the airways. They are used to treat asthma and chronic bronchitis. Adrenergic bronchodilator overdose occurs when someone accidentally...

Nutrition
Aflatoxin
Aflatoxins are toxins produced by a mold (fungus) that grows in nuts, seeds, and legumes. toxins

Poison
Aftershave poisoning
Aftershave is a lotion, gel, or liquid applied to the face after shaving. Many men use it. This article discusses the harmful effects from swallowing aftershave products. This article is for information...

Injury
Allergic reactions
Allergic reactions are sensitivities to substances called allergens that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be breathed into the lungs,...

Poison
Aloe
Aloe is an extract from the aloe plant. It is used in many skin care products. Aloe poisoning occurs when someone swallows this substance. However, aloe is not very poisonous. This article is for information...

Poison
Aminophylline overdose
Aminophylline and theophylline are medicines used to treat lung diseases such as asthma. They help prevent and treat wheezing and other breathing problems, including respiratory distress associated with...

Poison
Amitriptyline and perphenazine overdose
Amitriptyline and perphenazine is a combination drug. It is sometimes prescribed for people with depression, agitation, or anxiety. Amitriptyline and perphenazine overdose occurs when someone takes more...

Poison
Amitriptyline hydrochloride overdose
Amitriptyline hydrochloride is a type of prescription medicine called a tricyclic antidepressant. It is used to treat depression. Amitriptyline hydrochloride overdose occurs when someone takes more than...

Tests
Ammonia blood test
The ammonia test measures the level of ammonia in a blood sample.

Poison
Ammonia poisoning
Ammonia is a strong, colorless gas. If the gas is dissolved in water, it is called liquid ammonia. Poisoning may occur if you breathe in ammonia. Poisoning may also occur if you swallow or touch products...

Poison
Ammonium hydroxide poisoning
Ammonium hydroxide is a colorless liquid chemical solution. It is in a class of substances called caustics. Ammonium hydroxide forms when ammonia dissolves in water. This article discusses poisoning from...

Self-Care Instructions
Animal bites - self-care
Bites - animals - self-care

Self-Care Instructions
Ankle fracture - aftercare
Malleolar fracture; Tri-malleolar; Bi-malleolar; Distal tibia fracture; Distal fibula fracture; Malleolus fracture; Pilon fracture

Poison
Anti-rust product poisoning
Anti-rust product poisoning occurs when someone breathes in or swallows anti-rust products. These products may be accidentally breathed in (inhaled) if they are used in a small, poorly ventilated area,...

Poison
Anticoagulant rodenticides poisoning
Anticoagulant rodenticides are poisons used to kill rats. Rodenticide means rodent killer. An anticoagulant is a blood thinner. Anticoagulant rodenticide poisoning occurs when someone swallows a product...

Poison
Antidiarrheal drug overdose
Antidiarrheal drugs are used to treat loose, watery, and frequent stools. This article discusses overdose of antidiarrheal drugs containing diphenoxylate and atropine. Both ingredients help slow intestinal...

Poison
Antifreeze poisoning
Antifreeze is a liquid used to cool engines. It is also called engine coolant. This article discusses poisoning caused by swallowing antifreeze. This is for information only and not for use in the treatment...

Diseases & Conditions
Arterial embolism
Arterial embolism refers to a clot (embolus) that has come from another part of the body and causes a sudden interruption of blood flow to an organ or body part.

Poison
Asphalt cement poisoning
Asphalt is a brownish-black liquid petroleum material that hardens when it cools. Asphalt cement poisoning occurs when someone swallows asphalt. If hot asphalt gets on the skin, serious injury can occur...

Poison
Aspirin overdose
Aspirin is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve mild to moderate aches and pains, swelling, and fever. Aspirin overdose occurs when someone accidentally or intentionally takes more...

Poison
Automatic dishwasher soap poisoning
Automatic dishwasher soap poisoning refers to illness that occurs when you swallow soap used in automatic dishwashers or when the soap contacts the face. This article is for information only. DO NOT use...

B

Poison
Bacitracin overdose
Bacitracin is an antibiotic medicine. It is used to kill germs that cause infections. Small amounts of bacitracin are dissolved in petroleum jelly to create antibiotic ointments. Bacitracin overdose occurs...

Poison
Bacitracin zinc overdose
Bacitracin zinc is a medicine that is used on cuts and other skin wounds to help prevent infection. Bacitracin is an antibiotic, a medicine that kills germs. Small amounts of bacitracin zinc are dissolved...

Poison
Baking powder overdose
Baking powder is a cooking product that helps batter rise. This article discusses the effects of swallowing a large amount of baking powder. Baking powder is considered nontoxic when it is used in cooking...

Poison
Baking soda overdose
Baking soda is a cooking product that helps batter rise. This article discusses the effects of swallowing a large amount of baking soda. Baking soda is considered nontoxic when it is used in cooking and...

Diseases & Conditions
Barbiturate intoxication and overdose
Barbiturates are drugs that cause relaxation and sleepiness. A barbiturate overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on purpose...

Tests
Basic metabolic panel
The basic metabolic panel is a group of blood tests that provides information about your body's metabolism. metabolism

Poison
Bee, wasp, hornet, or yellow jacket sting
This article describes the effects of a sting from a bee, wasp, hornet, or yellow jacket. wasp This article is for information only. DO NOT use it to treat or manage an actual poisoning from a sting. If...

Poison
Beeswax poisoning
Beeswax is wax from the honeycomb of bees. Beeswax poisoning occurs when someone swallows beeswax. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you...

Poison
Benzene poisoning
Benzene is a clear, liquid, petroleum-based chemical that has a sweet smell. Benzene poisoning occurs when someone swallows, breathes in, or touches benzene. It is a member of a class of compounds known...

Poison
Beta-blockers overdose
Beta-blockers are a type of drug used to treat high blood pressure and heart rhythm disturbances. They are one of several classes of medicines used to treat the heart and related conditions, and are also...

Self-Care Instructions
Bicycle safety

Poison
Birth control pill overdose
Birth control pills, also called oral contraceptives, are prescription medicines used to prevent pregnancy. Birth control pill overdose occurs when someone takes more than the normal or recommended amount...

Poison
Black nightshade poisoning
Black nightshade poisoning occurs when someone eats pieces of the black nightshade plant. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone...

Poison
Black widow spider
The black widow spider (Latrodectus genus) has a shiny black body with a red hourglass-shape on its belly area. The venomous bite of a black widow spider is toxic. The genus of spiders, to which the black...

Injury
Bleeding
Bleeding is the loss of blood. Bleeding may be: Inside the body (internally) Outside the body (externally) Inside the body (internally)  Outside the body (externally) Bleeding may occur: Inside the body...

Diseases & Conditions
Blockage of upper airway
Blockage of the upper airway occurs when the upper breathing passages become narrowed or blocked, making it hard to breathe. Areas in the upper airway that can be affected are the windpipe (trachea), voice...

Self-Care Instructions
Blood transfusions

Poison
Blue nightshade poisoning
Blue nightshade poisoning occurs when someone eats parts of the blue nightshade plant. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone...

Poison
Boric acid poisoning
Boric acid is a dangerous poison. Poisoning from this chemical can be acute or chronic. Acute boric acid poisoning usually occurs when someone swallows powdered roach-killing products that contain the chemical...

Diseases & Conditions
Botulism
Botulism is a rare but serious illness caused by Clostridium botulinum bacteria. The bacteria may enter the body through wounds, or by eating them from improperly canned or preserved food. Clostridium botulinum

Tests
Breath alcohol test
A breath alcohol test determines how much alcohol is in your blood. The test measures the amount of alcohol in the air you breathe out (exhale).

Symptoms
Breathing - slowed or stopped
Breathing that stops from any cause is called apnea. Slowed breathing is called bradypnea. Labored or difficult breathing is known as dyspnea.

Injury
Breathing difficulties - first aid
Most people take breathing for granted. People with certain illnesses may have breathing problems that they deal with on a regular basis. This article discusses first aid for someone who is having unexpected...

Injury
Broken bone
If more pressure is put on a bone than it can stand, it will split or break. A break of any size is called a fracture. If the broken bone punctures the skin, it is called an open fracture (compound fracture...

Self-Care Instructions
Broken collarbone - aftercare
Collarbone fracture - aftercare; Clavicle fracture - aftercare; Clavicular fracture

Self-Care Instructions
Broken toe - self-care
Fractured toe - self-care; Broken bone - toe - self-care; Fracture - toe - self-care; Fracture phalanx - toe

Poison
Brompheniramine overdose
Brompheniramine is a type of medicine called an antihistamine, which helps relieve allergy symptoms. Brompheniramine overdose occurs when someone takes more than the normal or recommended amount of this...

Poison
Brown recluse spider
Brown recluse spiders are between 1 and 1 1/2 inches (2. 5 to 3. 5 centimeters) long. They have a dark brown, violin-shaped mark on their upper body and light brown legs. Their lower body may be dark brown...

Poison
Bubble bath soap poisoning
Bubble bath soap poisoning occurs when someone swallows bubble bath soap. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with...

Poison
Bug spray poisoning
This article discusses the harmful effects from breathing in or swallowing bug spray (repellent). This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you...

Injury
Burns
Burns commonly occur by direct or indirect contact with heat, electric current, radiation, or chemical agents. Burns can lead to cell death, which can require hospitalization and can be fatal.

Special Topics
Burns - resources

Poison
Butazolidin overdose
Butazolidin is an NSAID (nonsteroidal anti-inflammatory drug). Butazolidin overdose occurs when someone takes more than the normal or recommended amount of this medicine.  This can be by accident or on...

Poison
Button batteries
Button batteries are tiny, round batteries. They are commonly used in watches and hearing aids. Children often swallow these batteries or put them up their nose. They can be breathed in more deeply (inhaled...

C

Tests
CO2 blood test
CO2 is carbon dioxide. This article discusses the laboratory test to measure the amount of carbon dioxide in the liquid part of your blood, called the serum. In the body, most of the CO2 is in the form...

Injury
CPR
CPR stands for cardiopulmonary resuscitation. It is an emergency life-saving procedure that is done when someone's breathing or heartbeat has stopped. This may happen after an electric shock, heart attack...

Injury
CPR - adult and child after onset of puberty
CPR stands for cardiopulmonary resuscitation. It is a lifesaving procedure that is done when someone's breathing or heartbeat has stopped. This may happen after an electric shock, drowning, or heart attack...

Injury
CPR - infant
CPR stands for cardiopulmonary resuscitation. It is a lifesaving procedure that is done when a baby's breathing or heartbeat has stopped. This may happen after drowning, suffocation, choking, or other injuries...

Injury
CPR - young child (age 1 year to onset of puberty)
CPR stands for cardiopulmonary resuscitation. It is a lifesaving procedure that is done when a child's breathing or heartbeat has stopped. This may happen after drowning, suffocation, choking, or an injury...

Tests
CSF smear
A cerebrospinal fluid (CSF) smear is a laboratory test to look for bacteria, fungi, and viruses in the fluid that moves in the space around the spinal cord and brain. CSF protects the brain and spinal cord...

Poison
Caffeine overdose
Caffeine is a substance that exists naturally in certain plants. It can also be man-made and added to food products. It stimulates the central nervous system and is a diuretic, which means it increases...

Poison
Caladium plant poisoning
This article describes poisoning caused by eating parts of the Caladium plant and other plants in the Araceae family. This article is for information only. DO NOT use it to treat or manage an actual poison...

Poison
Calcium carbonate overdose
Calcium carbonate is commonly found in antacids (for heartburn) and some dietary supplements. Calcium carbonate overdose occurs when someone takes more than the normal or recommended amount of a product...

Poison
Calcium carbonate with magnesium overdose
The combination of calcium carbonate and magnesium is commonly found in antacids. These medicines provide heartburn relief. Calcium carbonate with magnesium overdose occurs when someone takes more than...

Poison
Calcium hydroxide poisoning
Calcium hydroxide is a white powder produced by mixing calcium oxide ("lime") with water. Calcium hydroxide poisoning occurs when someone swallows this substance. This article is for information only. DO...

Poison
Calcium-channel blocker overdose
Calcium-channel blockers are a type of medicine used to treat high blood pressure and heart rhythm disturbances. They are one of several classes of drugs used to treat the heart and related conditions....

Poison
Calla lily
This article describes poisoning caused by eating parts of a calla lily plant. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are...

Poison
Campho-Phenique overdose
Campho-Phenique is an over-the-counter medicine used to treat cold sores and insect bites. Campho-Phenique overdose occurs when someone applies more than the normal or recommended amount of this medicine...

Poison
Camphor overdose
Camphor is a white substance with a strong odor that is commonly associated with topical ointments and gels used for cough suppression and muscle aches. Camphor overdose occurs when someone accidentally...

Poison
Candles poisoning
Candles are made out of wax. Candle poisoning occurs when someone swallows candle wax. This can happen by accident or on purpose. This article is for information only. DO NOT use it to treat or manage an...

Tests
Capillary nail refill test
The capillary nail refill test is a quick test done on the nail beds. It is used to monitor dehydration and the amount of blood flow to tissue. dehydration

Poison
Carbolic acid poisoning
Carbolic acid is a sweet-smelling clear liquid. It is added to many different products. Carbolic acid poisoning occurs when someone touches or swallows this chemical. This article is for information only...

Poison
Carbon monoxide poisoning
Carbon monoxide is an odorless gas that causes thousands of deaths each year in North America. Breathing in carbon monoxide is very dangerous. It is the leading cause of poisoning death in the United States...

Poison
Cardiac glycoside overdose
Cardiac glycosides are medicines for treating heart failure and certain irregular heartbeats. They are one of several classes of drugs used to treat the heart and related conditions. These drugs are a common...

Poison
Castor oil overdose
Castor oil is a yellowish liquid often used as a lubricant and in laxatives. This article discusses poisoning from swallowing a large amount (overdose) of castor oil. This is for information only and not...

Poison
Caterpillars
Caterpillars are the larvae (immature forms) of butterflies and moths. There are many thousands of types, with a huge variety of colors and sizes. They look like worms and are covered in small hairs. Most...

Poison
Caulking compound poisoning
Caulking compounds are substances used to seal cracks and holes around windows and other openings. Caulking compound poisoning occurs when someone swallows these substances. This article is for information...

Diseases & Conditions
Cavernous sinus thrombosis
Cavernous sinus thrombosis is a blood clot in an area at the base of the brain. blood clot

Poison
Cedar leaf oil poisoning
Cedar leaf oil is made from some types of cedar trees. Cedar leaf oil poisoning occurs when someone swallows this substance. Young children who smell the oil may try to drink it because it has a sweet smell...

Poison
Centipede
This article describes the effects of a centipede bite. This article is for information only. DO NOT use it to treat or manage an actual poisoning from a centipede bite. This article is for information...

Tests
Cerebrospinal fluid (CSF) culture
A cerebrospinal fluid (CSF) culture is a laboratory test to look for bacteria, fungi, and viruses in the fluid that moves in the space around the spinal cord. CSF protects the brain and spinal cord from...

Symptoms
Chest pain
Chest pain is discomfort or pain that you feel anywhere along the front of your body between your neck and upper abdomen.

Poison
Chlordiazepoxide overdose
Chlordiazepoxide is a prescription medicine used to treat certain anxiety disorders and symptoms of alcohol withdrawal. Chlordiazepoxide overdose occurs when someone takes more than the normal or recommended...

Tests
Chloride test - blood
Chloride is a type of electrolyte. It works with other electrolytes such as potassium, sodium, and carbon dioxide (CO2). These substances help keep the proper balance of body fluids and maintain the body...

Poison
Chlorinated lime poisoning
Chlorinated lime is a white powder used for bleaching or disinfecting. Chlorinated lime poisoning occurs when someone swallows chlorinated lime. This article is for information only. DO NOT use it to treat...

Poison
Chlorine poisoning
Chlorine is a chemical that prevents bacteria from growing. Chlorine poisoning occurs when someone swallows or breathes in (inhales) chlorine. This article is for information only. DO NOT use it to treat...

Poison
Chlorophyll
Chlorophyll is the chemical that makes plants green. Chlorophyll poisoning occurs when someone swallows a large amount of this substance. This article is for information only. DO NOT use it to treat or...

Poison
Chlorpromazine overdose
Chlorpromazine is a prescription medicine used to treat psychotic disorders. It may also be used to prevent nausea and vomiting, and for other reasons. This medicine may also change the metabolism and the...

Injury
Choking - adult or child over 1 year
Choking is when someone is having a very hard time breathing because food, a toy, or other object is blocking the throat or windpipe (airway). A choking person's airway may be blocked so that not enough...

Injury
Choking - infant under 1 year
Choking is when someone cannot breathe because food, a toy, or other object is blocking the throat or windpipe (airway). This article discusses choking in infants.

Injury
Choking - unconscious adult or child over 1 year
Choking is when someone cannot breathe because food, a toy, or other object is blocking the throat or windpipe (airway). A choking person's airway may be blocked so that not enough oxygen reaches the lungs...

Poison
Clinitest tablets poisoning
Clinitest tablets are used to test how much sugar (glucose) there is in a person's urine. Poisoning occurs from swallowing these tablets. Clinitest tablets used to be used to check how well a person's diabetes...

Self-Care Instructions
Closed reduction of a fractured bone
Fracture reduction - closed

Poison
Cloth dye poisoning
Cloth dyes are chemicals used to color cloth. Cloth dye poisoning occurs when someone swallows large amounts of these substances. This article is for information only. DO NOT use it to treat or manage an...

Poison
Cobalt poisoning
Cobalt is a naturally occurring element in the earth's crust. It is a very small part of our environment. Cobalt is a component of vitamin B12, which supports the production of red blood cells. Very small...

Poison
Codeine overdose
Codeine is a drug in some prescription pain medicines. It is in the class of drugs known as opioids, which refers to any synthetic, semisynthetic, or natural drug that has morphine-like properties. Codeine...

Poison
Cold wave lotion poisoning
Cold wave lotion is a hair care product used to create permanent waves ("a perm"). Cold wave lotion poisoning occurs from swallowing, breathing in, or touching the lotion. This article is for information...

Diseases & Conditions
Collapsed lung (pneumothorax)
A collapsed lung occurs when air escapes from the lung. The air then fills the space outside of the lung, between the lung and chest wall. This buildup of air puts pressure on the lung, so it cannot expand...

Poison
Cologne poisoning
Cologne is a scented liquid made from alcohol and essential oils. Cologne poisoning occurs when someone swallows cologne. This can be by accident or on purpose. This article is for information only. DO...

Tests
Comprehensive metabolic panel
A comprehensive metabolic panel is a group of blood tests. They provide an overall picture of your body's chemical balance and metabolism. Metabolism refers to all the physical and chemical processes in...

Diseases & Conditions
Concussion
A concussion may occur when the head hits an object, or a moving object strikes the head. A concussion is a less severe type of brain injury. It may also be called a traumatic brain injury. A concussion...

Poison
Contac overdose
Contac is the brand name for a cough, cold, and allergy medicine. It contains several ingredients, including members of the class of drugs known as sympathomimetics, which can have effects similar to adrenaline...

Poison
Copper poisoning
This article discusses poisoning from copper. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with has an exposure, call your...

Poison
Corticosteroids overdose
Corticosteroids are medicines that treat inflammation in the body. They are some of the naturally-occurring hormones produced by glands and released into the blood stream. Corticosteroid overdose occurs...

Injury
Crush injury
A crush injury occurs when force or pressure is put on a body part. This type of injury most often happens when part of the body is squeezed between two heavy objects. Damage related to crush injuries include...

Poison
Cuticle remover poisoning
Cuticle remover is a liquid or cream used to remove excess tissue around the nails. Cuticle remover poisoning occurs when someone swallows this substance. This article is for information only. DO NOT use...

Injury
Cuts and puncture wounds
A cut is a break or opening in the skin. It is also called a laceration. A cut may be deep, smooth, or jagged. It may be near the surface of the skin, or deeper. A deep cut can affect tendons, muscles,...

Poison
Cyanoacrylates
Cyanoacrylate is a sticky substance found in many glues. Cyanoacrylate poisoning occurs when someone swallows this substance or gets it on their skin. This article is for information only. DO NOT use it...

Poison
Cyproheptadine overdose
Cyproheptadine is a type of drug called an antihistamine. These drugs are used to relieve allergy symptoms. Cyproheptadine overdose occurs when someone takes more than the normal or recommended amount of...

D

Tests
D-dimer test
D-dimer tests are used to check for blood clotting problems. Blood clots can cause health problems, such as: Blood clots Deep vein thrombosis (DVT)Pulmonary embolism (PE)StrokeDisseminated intravascular...

Poison
Deodorant poisoning
Deodorant poisoning occurs when someone swallows deodorant. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with has an exposure...

Poison
Depilatory poisoning
A depilatory is a product used to remove unwanted hair. Depilatory poisoning occurs when someone swallows this substance. This article is for information only. Do NOT use it to treat or manage an actual...

Poison
Desipramine hydrochloride overdose
Desipramine hydrochloride is a type of medicine called a tricyclic antidepressant. It is taken to relieve symptoms of depression. Desipramine hydrochloride overdose occurs when someone takes more than the...

Poison
Detergent poisoning
Detergents are powerful cleaning products that may contain strong acids, alkalis, or phosphates. Cationic detergents are often used as germ-killing cleansers (antiseptics) in hospitals. Anionic detergents...

Poison
Dextromethorphan overdose
Dextromethorphan is a medicine that helps stop coughing. It is an opioid substance. Dextromethorphan overdose occurs when someone takes more than the normal or recommended amount of this medicine. This...

Poison
Diazepam overdose
Diazepam is a prescription medicine used to treat anxiety disorders. It is in a class of drugs called benzodiazepines. Diazepam overdose occurs when someone takes more than the normal or recommended amount...

Poison
Diazinon poisoning
Diazinon is an insecticide, a product used to kill or control bugs. Poisoning can occur if you swallow diazinon. This is for information only and not for use in the treatment or management of an actual...

Poison
Diclofenac sodium overdose
Diclofenac sodium is a prescription medicine used to relieve pain and swelling. It is a nonsteroidal anti-inflammatory drug (NSAID). Diclofenac sodium overdose occurs when someone takes more than the normal...

Poison
Dieffenbachia poisoning
Dieffenbachia is a type of house plant with large, colorful leaves. Poisoning can occur if you eat the leaves, stalk, or root of this plant. This article is for information only. DO NOT use it to treat...

Poison
Diesel oil
Diesel oil is a heavy oil used in diesel engines. Diesel oil poisoning occurs when someone swallows diesel oil. This article is for information only. DO NOT use it to treat or manage an actual poison exposure...

Poison
Dilantin overdose
Dilantin is a medicine used to prevent seizures. Overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on purpose.  This article is for...

Poison
Dimenhydrinate overdose
Dimenhydrinate is a type of medicine called an antihistamine. Dimenhydrinate overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on...

Poison
Diphenhydramine overdose
Diphenhydramine is a type of medicine called an antihistamine. It is used in some allergy and sleep medicines. Overdose occurs when someone takes more than the normal or recommended amount of this medicine...

Poison
Dirt - swallowing
This article is about poisoning from swallowing or eating dirt. This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should...

Injury
Dislocation
A dislocation is a separation of two bones where they meet at a joint. A joint is the place where two bones connect, which allows movement. A dislocated joint is a joint where the bones are no longer in...

Diseases & Conditions
Disseminated intravascular coagulation (DIC)
Disseminated intravascular coagulation (DIC) is a serious disorder in which the proteins that control blood clotting become overactive.

Poison
Doxepin overdose
Doxepin is a type of medicine called a tricyclic antidepressant (TCA). It is prescribed to treat depression and anxiety. Doxepin overdose occurs when someone takes more than the normal or recommended amount...

Poison
Drain cleaner poisoning
Drain cleaners contain very dangerous chemicals that can be harmful to your health if you swallow them, breathe them in (inhale), or if they come in contact with your skin and eyes. This article discusses...

Poison
Drain opener poisoning
Drain opening agents are chemicals used to open clogged drains, often in homes. Drain opening agent poisoning can occur if a child accidentally drinks these chemicals, or if someone splashes the poison...

Poison
Drainpipe cleaners
Drainpipe cleaners are chemicals used to clean drainpipes. Drainpipe cleaner poisoning occurs when someone swallows or breathes in (inhales) a drainpipe cleaner. This article is for information only. DO...

Injury
Drug use first aid
Drug use is the misuse or overuse of any medicine or drug, including alcohol. This article discusses first aid for drug overdose and withdrawal. Drug use overdose

Diseases & Conditions
Drug-induced immune hemolytic anemia
Drug-induced immune hemolytic anemia is a blood disorder that occurs when a medicine triggers the body's defense (immune) system to attack its own red blood cells. This causes red blood cells to break down...

Diseases & Conditions
Drug-induced thrombocytopenia
Thrombocytopenia is any disorder in which there are not enough platelets. Platelets are cells in the blood that help the blood clot. A low platelet count makes bleeding more likely. Thrombocytopenia When...

Poison
Dry cell battery poisoning
Dry cell batteries are a common type of power source. Tiny dry cell batteries are sometimes called button batteries. This article discusses the harmful effects from swallowing a dry cell battery (including...

Poison
Dye remover poisoning
Dye remover is a chemical used to remove dye stains. Dye remover poisoning occurs when someone swallows this substance. This article is for information only. DO NOT use it to treat or manage an actual poison...

E

Diseases & Conditions
Ebola virus disease
Ebola is a severe and often deadly disease caused by a virus. Symptoms include fever, diarrhea, vomiting, bleeding, and often, death. Ebola can occur in humans and other primates (gorillas, monkeys, and...

Injury
Electrical injury
An electrical injury is damage to the skin or internal organs when a person comes into direct contact with an electrical current.

Poison
Elephant ear poisoning
Elephant ear plants are indoor or outdoor plants with very large, arrow-shaped leaves. Poisoning may occur if you eat parts of this plant. This article is for information only. DO NOT use it to treat or...

Diseases & Conditions
Encephalitis
Encephalitis is irritation and swelling (inflammation) of the brain, most often due to infections.

Surgery
Endotracheal intubation
Endotracheal intubation is a medical procedure in which a tube is placed into the windpipe (trachea) through the mouth or nose. In most emergency situations, it is placed through the mouth.

Diseases & Conditions
Epidural abscess
An epidural abscess is a collection of pus (infected material) and germs between the outer covering of the brain and spinal cord and the bones of the skull or spine. The abscess causes swelling in the area...

Special Topics
Eschar
Eschar is dead tissue that falls off (sheds) from healthy skin. It is caused by a burn or cauterization (destroying tissue with heat or cold, or another method). burn cauterization An escharotic is a substance...

Diseases & Conditions
Esophageal atresia
Esophageal atresia is a digestive disorder in which the esophagus does not develop properly. The esophagus is the tube that normally carries food from the mouth to the stomach.

Poison
Estrogen overdose
Estrogen is a female hormone. Estrogen overdose occurs when someone takes more than the normal or recommended amount of a product containing the hormone. This can be by accident or on purpose. This article...

Poison
Ethanol poisoning
Ethanol poisoning is caused by drinking too much alcohol. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with has an exposure...

Poison
Ethylene glycol poisoning
Ethylene glycol is a colorless, odorless, sweet-tasting chemical. It is poisonous if swallowed. Ethylene glycol may be swallowed accidentally, or it may be taken deliberately in a suicide attempt or as...

Poison
Eucalyptus oil overdose
Eucalyptus oil overdose occurs when someone swallows a large amount of a product that contains this oil. This can be by accident or on purpose. This article is for information only. DO NOT use it to treat...

Poison
Eugenol oil overdose
Eugenol oil (clove oil) overdose occurs when someone swallows a large amount of a product that contains this oil. This can be by accident or on purpose. This article is for information only. DO NOT use...

F

Poison
Face powder poisoning
Face powder poisoning occurs when someone swallows or breathes in this substance. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you...

Poison
Fenoprofen calcium overdose
Fenoprofen calcium is a type of medicine called a nonsteroidal anti-inflammatory drug.  It is a prescription pain medicine used to relieve symptoms of arthritis. arthritis Fenoprofen calcium overdose occurs...

Tests
Fibrinogen blood test
Fibrinogen is a protein produced by the liver. This protein helps stop bleeding by helping blood clots to form. A blood test can be done to tell how much fibrinogen you have in the blood.

Poison
Fire ants
Fire ants are red-colored insects. A sting from a fire ant delivers a harmful substance, called venom, into your skin. This article is for information only. DO NOT use it to treat or manage an actual fire...

Self-Care Instructions
Fire safety at home

Special Topics
First aid kit

Injury
Fishhook removal
This article discusses how to remove a fishhook that is stuck in the skin.

Poison
Fluoride overdose
Fluoride is a chemical commonly used to prevent tooth decay. Fluoride overdose occurs when someone takes more than the normal or recommended amount of this substance.  This can be by accident or on purpose...

Injury
Foreign body in the nose
This article discusses first aid for a foreign object placed into the nose.

Injury
Foreign object - swallowed
If you swallow a foreign object, it can get stuck along the gastrointestinal (GI) tract from the esophagus (swallowing tube) to the colon (large intestine). This can lead to a blockage or tear in the GI...

Poison
Foxglove poisoning
Foxglove poisoning most often occurs from sucking the flowers or eating the seeds, stems, or leaves of the foxglove plant. Poisoning may also occur from taking more than the recommended amounts of medicines...

Injury
Frostbite
Frostbite is damage to the skin and underlying tissues caused by extreme cold. Frostbite is the most common freezing injury.

Poison
Fuel oil poisoning
Fuel oil poisoning occurs when someone swallows, breathes in (inhales), or touches fuel oil. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone...

Poison
Funnel-web spider bite
This article describes the effects of a bite from the funnel-web spider. Male funnel-web spider bites are more toxic than bites by females. The class of insects to which the funnel-web spider belongs, contains...

Poison
Furniture polish poisoning
Furniture polish poisoning occurs when someone swallows or breathes in (inhales) liquid furniture polish. Some furniture polishes may also be sprayed into the eyes. This article is for information only...

G

Diseases & Conditions
Gangrene
Gangrene is the death of tissue in part of the body.

Diseases & Conditions
Gas gangrene
Gas gangrene is a potentially deadly form of tissue death (gangrene). gangrene

Poison
Gasoline poisoning
This article discusses the harmful effects from swallowing gasoline or breathing in its fumes. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or...

Poison
Glaze poisoning
Glazes are products that add a shiny or glossy coating to a surface. Glaze poisoning occurs when someone swallows these substances. This article is for information only. DO NOT use it to treat or manage...

Poison
Grass allergy
Many people are allergic to pollens from grass and weeds. These allergies most often occur in the late spring and summer. allergic to pollens from grass and weeds allergies This article is for information...

Poison
Grass and weed killer poisoning
Many weed killers contain dangerous chemicals that are harmful if swallowed. This article discusses poisoning by swallowing weed killers containing a chemical called glyphosate. This is for information...

Self-Care Instructions
Gunshot wounds - aftercare

H

Diseases & Conditions
H influenzae meningitis
Meningitis is an infection of the membranes covering the brain and spinal cord. This covering is called the meninges. Meningitis Bacteria are one type of germ that can cause meningitis. Haemophilus influenzae...

Poison
H2 receptor antagonists overdose
H2 receptor antagonists are medicines that help decrease stomach acid. H2 receptor antagonist overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be...

Poison
Hair bleach poisoning
Hair bleach poisoning occurs when someone swallows hair bleach or splashes it on their skin or in their eyes. bleach This article is for information only. DO NOT use it to treat or manage an actual poison...

Poison
Hair dye poisoning
Hair dye poisoning occurs when someone swallows dye or tint used to color hair. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are...

Poison
Hair spray poisoning
Hair spray poisoning occurs when someone breathes in (inhales) hair spray or sprays it down their throat or into their eyes. This article is for information only. DO NOT use it to treat or manage an actual...

Poison
Hair straightener poisoning
Hair straightener poisoning occurs when someone swallows products that are used to straighten hair. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you...

Poison
Hair tonic poisoning
Hair tonic is a product used to style the hair. Hair tonic poisoning occurs when someone swallows this substance. This article is for information only. DO NOT use it to treat or manage an actual poison...

Self-Care Instructions
Hand fracture - aftercare
Boxer's fracture - aftercare; Metacarpal fracture - aftercare

Poison
Hand lotion poisoning
Hand lotion poisoning occurs when someone swallows hand lotion or hand cream. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are...

Diseases & Conditions
Hantavirus
Hantavirus is a life-threatening viral infection spread to humans by rodents.

Special Topics
Hazardous materials
HazCom; Hazard communication; Material Safety Data Sheet; MSDS

Injury
Head injury - first aid
A head injury is any trauma to the scalp, skull, or brain. The injury may be only a minor bump on the skull or a serious brain injury. Head injury can be either closed or open (penetrating). A closed head...

Injury
Heart attack first aid
A heart attack is a medical emergency. Call 911 or the local emergency number if you think you or someone else is having a heart attack. heart attack The average person waits 3 hours before seeking help...

Injury
Heat emergencies
Heat emergencies or illnesses are caused by exposure to extreme heat and sun. Heat illnesses can be prevented by being careful in hot, humid weather.

Special Topics
Heimlich maneuver on self
The Heimlich maneuver is a first aid procedure used when a person is choking. If you are alone and you are choking, you can try to dislodge the item in your throat or windpipe by performing the Heimlich...

Tests
Hemoglobin derivatives
Hemoglobin derivatives are altered forms of hemoglobin. Hemoglobin is a protein in red blood cells that moves oxygen and carbon dioxide between the lungs and body tissues. hemoglobin This article discusses...

Diseases & Conditions
Hemolytic anemia
Anemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. Anemia Normally, red blood cells last for about 120 days in the body...

Symptoms
Hemolytic crisis
Hemolytic crisis occurs when large numbers of red blood cells are destroyed over a short time. The loss of red blood cells occurs much faster than the body can produce new red blood cells.

Diseases & Conditions
Hemolytic-uremic syndrome
Shiga-like toxin producing E coli hemolytic-uremic syndrome (STEC-HUS) is a disorder that most often occurs when an infection in the digestive system produces toxic substances. These substances destroy...

Diseases & Conditions
Hemothorax
Hemothorax is a collection of blood in the space between the chest wall and the lung (the pleural cavity).

Poison
Heroin overdose
Heroin is an illegal drug that is very addictive. It is in the class of drugs known as opioids. opioids This article discusses heroin overdose. An overdose occurs when someone takes too much of a substance...

Poison
Household glue poisoning
Most household glues, such as Elmer's Glue-All, are not poisonous. However, household glue poisoning can occur when someone breathes in glue fumes on purpose in an attempt to get high. Industrial-strength...

Injury
How to make a sling
A sling is a device used to support and keep still (immobilize) an injured part of the body. Slings can be used for many different injuries. They are most often used when you have a broken (fractured) or...

Self-Care Instructions
Human bites - self-care
Bites - human - self-care

Diseases & Conditions
Hydrocarbon pneumonia
Hydrocarbon pneumonia is caused by drinking or breathing in gasoline, kerosene, furniture polish, paint thinner, or other oily materials or solvents. These hydrocarbons have a very low viscosity, which...

Poison
Hydrochloric acid poisoning
Hydrochloric acid is a clear, poisonous liquid. It is a caustic chemical and highly corrosive, which means it immediately causes severe damage to tissues, such as burning, on contact. This article discusses...

Poison
Hydrocodone and acetaminophen overdose
Hydrocodone is a painkiller in the opioid family (related to morphine). Acetaminophen is an over-the-counter medicine used to treat pain and inflammation. They may be combined in one prescription medicine...

Poison
Hydrocodone/oxycodone overdose
Hydrocodone and oxycodone are opioids, drugs that are mostly used to treat extreme pain. Hydrocodone and oxycodone overdose occurs when someone intentionally or accidentally takes too much medicine containing...

Poison
Hydrofluoric acid poisoning
Hydrofluoric acid is a chemical that is a very strong acid. It is usually in liquid form. Hydrofluoric acid is a caustic chemical that is highly corrosive, which means it immediately causes severe damage...

Poison
Hydrogen peroxide poisoning
Hydrogen peroxide is a liquid commonly used to fight germs. Hydrogen peroxide poisoning occurs when large amounts of the liquid are swallowed or get in the lungs or eyes. This article is for information...

Poison
Hydromorphone overdose
Hydromorphone is a prescription medicine used to relieve severe pain. Hydromorphone overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident...

Poison
Hydroxyzine overdose
Hydroxyzine is an antihistamine available only with a prescription. It is used to treat symptoms of allergies and motion sickness. Hydroxyzine overdose occurs when someone takes more than the normal or...

Injury
Hypothermia
Hypothermia is dangerously low body temperature, below 95°F (35°C).

Diseases & Conditions
Hypovolemic shock
Hypovolemic shock is an emergency condition in which severe blood or other fluid loss makes the heart unable to pump enough blood to the body. This type of shock can cause many organs to stop working. shock

I

Poison
Ibuprofen overdose
Ibuprofen is a type of nonsteroidal anti-inflammatory drug (NSAID). Ibuprofen overdose occurs when someone accidentally or intentionally takes more than the normal or recommended amount of this medicine...

Poison
Imipramine overdose
Imipramine is a prescription medicine used to treat depression. Imipramine overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on purpose...

Diseases & Conditions
Immune hemolytic anemia
Anemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to the body's tissues. Red blood cells last for about 120 days before the body gets...

Poison
Incense
Incense is a product that creates a smell when it is burned. Incense poisoning can occur when someone sniffs or swallows liquid incense. This can be by accident or on purpose. Solid incense is not considered...

Poison
Indomethacin overdose
Indomethacin is a type of nonsteroidal anti-inflammatory drug. It is used to relieve pain, swelling, and inflammation. Indomethacin overdose occurs when someone takes more than the normal or recommended...

Poison
Ink poisoning
Writing ink poisoning occurs when someone swallows ink found in writing instruments (pens). This article is for information only. Do NOT use it to treat or manage an actual poison exposure. If you or someone...

Poison
Ink remover poisoning
Ink remover is a chemical used to get out ink stains. Ink remover poisoning occurs when someone swallows this substance. This article is for information only. Do NOT use it to treat or manage an actual...

Injury
Insect bites and stings
Insect bites and stings can cause an immediate skin reaction. The bite from fire ants and the sting from bees, wasps, and hornets are most often painful. Bites caused by mosquitoes, fleas, and mites are...

Poison
Insecticide poisoning
Insecticide is a chemical that kills bugs. Insecticide poisoning occurs when someone swallows or breathes in this substance or it is absorbed through the skin. This article is for information only. DO NOT...

Poison
Iodine poisoning
Iodine is a naturally-occurring chemical. Small amounts are needed for good health. However, large doses can cause harm. Children are especially sensitive to the effects of iodine. NOTE: Iodine is found...

Poison
Iron overdose
Iron is a mineral found in many over-the-counter supplements. Iron overdose occurs when someone takes more than the normal or recommended amount of this mineral. This can be by accident or on purpose. Iron...

Nutrition
Irradiated foods
Irradiated foods are foods that are sterilized using x-rays or radioactive materials that kill bacteria. The process is called irradiation. It is used to remove germs from food. It does not make the food...

Poison
Isopropanol alcohol poisoning
Isopropanol is a type of alcohol used in some household products, medicines, and cosmetics. It is not meant to be swallowed. Isopropanol poisoning occurs when someone swallows this substance. This can be...

J

Poison
Jack-in-the-pulpit poisoning
A Jack-in-the-pulpit is a plant belonging to the species Arisaema triphyllum. This article describes poisoning caused by eating parts of this plant. The roots are the most dangerous part of the plant. Arisaema...

Poison
Jellyfish stings
Jellyfish are sea creatures. They have nearly see-through bodies with long, finger-like structures called tentacles. Stinging cells inside the tentacles can hurt you if you come in contact with them. Some...

Poison
Jerusalem cherry poisoning
The Jerusalem cherry is a plant that belongs to the same family as the black nightshade. It has small, round, red and orange fruit. Jerusalem cherry poisoning occurs when someone eats pieces of this plant...

Poison
Jewelry cleaners
This article discusses the harmful effects that can occur from swallowing jewelry cleaner or breathing in its fumes. This article is for information only. DO NOT use it to treat or manage an actual poison...

Poison
Jimsonweed poisoning
Jimsonweed is a tall herb plant. Jimsonweed poisoning occurs when someone sucks the juice or eats the seeds from this plant. You can also be poisoned by drinking tea made from the leaves. This article is...

K

Poison
Kerosene poisoning
Kerosene is an oil used as a fuel for lamps, as well as heating and cooking. This article discusses the harmful effects from swallowing or breathing in kerosene. This article is for information only. DO...

Poison
Ketoprofen overdose
Ketoprofen is a nonsteroidal anti-inflammatory drug. It is used to treat pain, swelling, and inflammation. Ketoprofen overdose occurs when someone takes more than the normal or recommended amount of this...

L

Self-Care Instructions
Laceration - sutures or staples - at home
Skin cut - caring for stitches; Skin cut - suture care; Skin cut - caring for staples

Self-Care Instructions
Lacerations - liquid bandage
Skin adhesives; Tissue adhesive; Skin cut - liquid bandage; Wound - liquid bandage

Poison
Lacquer poisoning
Lacquer is a clear or colored coating (called a varnish) that is often used to give wooden surfaces a glossy look. Lacquer is dangerous to swallow. Breathing in the fumes for a long period is also harmful...

Tests
Lactate dehydrogenase test
Lactate dehydrogenase (LDH) is a protein that helps produce energy in the body. An LDH test measures the amount of LDH in the blood.

Tests
Lactic acid test
Lactic acid is mainly produced in muscle cells and red blood cells. It forms when the body breaks down carbohydrates to use for energy when oxygen levels are low. Times when your body's oxygen level might...

Poison
Lanolin poisoning
Lanolin is an oily substance taken from sheep's wool. Lanolin poisoning occurs when someone swallows a product that contains lanolin. This article is for information only. DO NOT use it to treat or manage...

Poison
Lavender oil
Lavender oil is an oil made from the flowers of lavender plants. Lavender poisoning can occur when someone swallows large amounts of lavender oil. This can be by accident or on purpose. This article is...

Poison
Laxative overdose
A laxative is a medicine used to produce bowel movements. Laxative overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on purpose....

Nutrition
Lead - nutritional considerations
Nutritional considerations to reduce the risk of lead poisoning. lead poisoning

Special Topics
Lead and tap water

Poison
Lead poisoning
Lead is a very strong poison. When a person swallows an object that has lead or breathes in lead dust, some of the poison can stay in the body and cause serious health problems. This article is for information...

Poison
Lighter fluid poisoning
Lighter fluid is a flammable liquid found in cigarette lighters and other types of lighters. Lighter fluid poisoning occurs when someone swallows this substance. This article is for information only. DO...

Poison
Lily of the valley
Lily of the valley is a flowering plant. Lily of the valley poisoning occurs when someone eats parts of this plant. This article is for information only. DO NOT use it to treat or manage an actual poison...

Poison
Lip moisturizer poisoning
This poisoning results from eating or swallowing lip moisturizers containing para-aminobenzoic acid. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If...

Poison
Lithium toxicity
Lithium is a prescription medicine used to treat bipolar disorder. This article focuses on lithium overdose, or toxicity. bipolar disorder Acute toxicity occurs when you swallow too much of a lithium prescription...

Poison
Lomotil overdose
Lomotil is a prescription medicine used to treat diarrhea. Lomotil overdose occurs when someone takes more than the normal or recommended amount of this medicine.  This can be by accident or on purpose...

Diseases & Conditions
Low blood potassium
Low blood potassium level is a condition in which the amount of potassium in the blood is lower than normal. The medical name of this condition is hypokalemia.

Diseases & Conditions
Low blood sodium
Low blood sodium is a condition in which the amount of sodium in the blood is lower than normal. The medical name of this condition is hyponatremia.

Diseases & Conditions
Lymphangitis
Lymphangitis is an infection of the lymph vessels (channels). It is a complication of some bacterial infections.

M

Diseases & Conditions
Magnesium deficiency
Magnesium deficiency is a condition in which the amount of magnesium in the blood is lower than normal. The medical name of this condition is hypomagnesemia.

Poison
Malathion poisoning
Malathion is an insecticide, a product used to kill or control bugs. Poisoning may occur if you swallow malathion, handle it without gloves, or do not wash hands your hands soon after touching it. Large...

Diseases & Conditions
Marijuana intoxication
Marijuana ("pot") intoxication is the euphoria, relaxation, and sometimes undesirable side effects that can occur when people use marijuana. The ability to perform complex tasks may be adversely affected...

Injury
Marine animal stings or bites
Marine animal stings or bites refer to venomous or poisonous bites or stings from any form of sea life, including jellyfish. There are about 2,000 species of animals found in the ocean that are either venomous...

Poison
Meclofenamate overdose
Meclofenamate is a nonsteroidal anti-inflammatory drug (NSAID) used to treat arthritis. Meclofenamate overdose occurs when someone takes more than the normal or recommended amount of this medicine. This...

Diseases & Conditions
Meningitis - cryptococcal
Cryptococcal meningitis is a fungal infection of the tissues covering the brain and spinal cord. These tissues are called meninges. meningitis

Diseases & Conditions
Meningitis - tuberculous
Tuberculous meningitis is an infection of the tissues covering the brain and spinal cord (meninges).

Diseases & Conditions
Meningococcal meningitis
Meningitis is an infection of the membranes covering the brain and spinal cord. This covering is called the meninges. Meningitis Bacteria are one type of germ that can cause meningitis. The meningococcal...

Diseases & Conditions
Meningococcemia
Meningococcemia is an acute and potentially life-threatening infection of the bloodstream. acute

Poison
Menthol poisoning
Menthol is used to add peppermint flavor to candy and other products. It is also used in certain skin lotions and ointments. This article discusses menthol poisoning from swallowing pure menthol. This article...

Poison
Meperidine hydrochloride overdose
Meperidine hydrochloride is a prescription painkiller. It is a type of drug called an opioid. Meperidine hydrochloride overdose occurs when someone takes more than the normal or recommended amount of this...

Poison
Meprobamate overdose
Meprobamate is a drug used to treat anxiety. Meprobamate overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on purpose. This article...

Poison
Merbromin poisoning
Merbromin is a germ-killing (antiseptic) liquid. Mebromin poisoning occurs when someone swallows this substance. This can be by accident or on purpose. This article is for information only. DO NOT use it...

Poison
Mercuric chloride poisoning
Mercuric chloride is a very poisonous form of mercury. It is a type of mercury salt. There are different types of mercury poisonings. This article discusses poisoning from swallowing mercuric chloride....

Poison
Mercuric oxide poisoning
Mercuric oxide is a form of mercury. It is a type of mercury salt. There are different types of mercury poisonings. This article discusses poisoning from swallowing mercuric oxide. mercury poisonings This...

Poison
Merthiolate poisoning
Merthiolate is a mercury-containing substance that was once widely used as germ-killer and a preservative in many different products, including vaccines. Merthiolate poisoning occurs when large amounts...

Diseases & Conditions
Metabolic acidosis
Metabolic acidosis is a condition in which there is too much acid in the body fluids.

Poison
Metal cleaner poisoning
Metal cleaners are very strong chemical products that contain acids. This article discusses poisoning from swallowing or breathing in such products. This article is for information only. DO NOT use it to...

Poison
Metal polish poisoning
Metal polishes are used to clean metals, including brass, copper, or silver. This article discusses the harmful effects from swallowing metal polish. This article is for information only. DO NOT use it...

Discharge Instructions
Metatarsal fracture (acute) - aftercare
Broken foot - metatarsal; Jones fracture; Dancer's fracture; Foot fracture

Poison
Methadone overdose
Methadone is a very strong painkiller. It is also used to treat heroin addiction. Methadone overdose occurs when someone accidentally or intentionally takes more than the normal or recommended amount of...

Poison
Methamphetamine overdose
Methamphetamine is a stimulant drug. A strong form of the drug is illegally sold on the streets. A much weaker form of the drug is used to treat narcolepsy and attention deficit hyperactivity disorder ...

Poison
Methanol poisoning
Methanol is a nondrinking type of alcohol used for industrial and automotive purposes. This article discusses poisoning from an overdose of methanol. This article is for information only. DO NOT use it...

Tests
Methanol test
Methanol is a substance that can occur naturally in small amounts in the body. The main sources of methanol in the body include fruits, vegetables, and diet drinks that contain aspartame. Methanol is a...

Diseases & Conditions
Methemoglobinemia - acquired
Methemoglobinemia is a blood disorder in which the body cannot reuse hemoglobin because it is damaged. Hemoglobin is the oxygen-carrying molecule found in red blood cells. In some cases of methemoglobinemia...

Poison
Methyl salicylate overdose
Methyl salicylate (oil of wintergreen) is a chemical that smells like wintergreen. It is used in many over-the-counter products, including muscle ache creams. It is related to aspirin. Methyl salicylate...

Poison
Mildew remover poisoning
Mildew removers are common household cleaners. Swallowing, breathing in the product, or spraying it in the eyes can be potentially dangerous. This article is for information only. DO NOT use it to treat...

Poison
Millipede toxin
Millipedes are worm-like bugs. Certain types of millipedes release a harmful substance (toxin) all over their body if they are threatened or if you handle them roughly. Unlike centipedes, millipedes do...

Poison
Mineral oil overdose
Mineral oil is a liquid oil made from petroleum. Mineral oil overdose occurs when someone swallows a large amount of this substance. This can be by accident or on purpose. This article is for information...

Poison
Mineral spirits poisoning
Mineral spirits are liquid chemicals used to thin paint and as a degreaser. Mineral spirits poisoning occurs when someone swallows or breathes in (inhales) the fumes from mineral spirits. This article is...

Poison
Mistletoe poisoning
Mistletoe is an evergreen plant with white berries. Mistletoe poisoning occurs when someone eats any part of this plant. Poisoning can also occur if you drink tea created from the plant or its berries....

Poison
Morphine overdose
Morphine is a very strong painkiller. It is one of a number of chemicals called opioids or opiates, which were originally derived from the poppy plant and used for pain relief or their calming effects....

Poison
Mouthwash overdose
Mouthwash overdose occurs when someone uses more than the normal or recommended amount of this substance. This can be by accident or on purpose. This article is for information only. DO NOT use it to treat...

Poison
Multiple vitamin overdose
Multiple vitamin overdose occurs when someone takes more than the normal or recommended amount of multivitamin supplements. This can be by accident or on purpose. This article is for information only. DO...

Diseases & Conditions
Myocardial contusion
Myocardial contusion is a bruise of the heart muscle.

Poison
Myristica oil poisoning
Myristica oil is a clear liquid that smells like the spice nutmeg. Myristica oil poisoning occurs when someone swallows this substance. This article is for information only. DO NOT use it to treat or manage...

N

Poison
Nail polish poisoning
This poisoning is from swallowing or breathing in (inhaling) nail polish. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with...

Poison
Naphthalene poisoning
Naphthalene is a white solid substance with a strong smell. Poisoning from naphthalene destroys or changes red blood cells so they cannot carry oxygen. This can cause organ damage. This article is for information...

Poison
Naproxen sodium overdose
Naproxen sodium is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve mild to moderate aches and pains and swelling. Naproxen sodium overdose occurs when someone accidentally or intentionally...

Self-Care Instructions
Nasal fracture - aftercare
Broken nose

Injury
Near drowning
"Near drowning" means a person almost died from not being able to breathe (suffocating) under water. If a person has been rescued from a near-drowning situation, quick first aid and medical attention are...

Diseases & Conditions
Neurosyphilis
Neurosyphilis is a bacterial infection of the brain or spinal cord. It usually occurs in people who have had untreated syphilis for many years. syphilis

Poison
Nicotine poisoning
Nicotine is a bitter-tasting compound that naturally occurs in large amounts in the leaves of tobacco plants. Nicotine poisoning results from too much nicotine. Acute nicotine poisoning usually occurs in...

Poison
Nitric acid poisoning
Nitric acid is a poisonous clear-to-yellow poisonous liquid. It is a chemical known as a caustic. If it contacts tissues, it can cause severe damage, such as burning, on contact. This article discusses...

Poison
Nitroglycerin overdose
Nitroglycerin is a medicine that helps relax the blood vessels leading to the heart. It is used to prevent and treat chest pain (angina), as well as extremely high blood pressure and other conditions. Nitroglycerin...

O

Poison
Oil-based paint poisoning
Oil-based paint poisoning occurs when large amounts of oil-based paint get into your stomach or lungs. It may also occur if the poison gets into your eyes or touches your skin. This article is for information...

Poison
Oleander poisoning
Oleander poisoning occurs when someone eats the flowers or chews the leaves or stems of the oleander plant (Nerium oleander), or its relative, the yellow oleander (Cascabela thevetia). Nerium oleander Cascabela...

Poison
Oral hypoglycemics overdose
Oral hypoglycemic pills are medicines to control diabetes. Oral means "taken by mouth. " There are many different types of oral hypoglycemics. This article focuses on a type called sulfonylureas. An overdose...

Poison
Oven cleaner poisoning
This article discusses the harmful effects from swallowing or breathing in an oven cleaner. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone...

Special Topics
Overdose
An overdose is when you take more than the normal or recommended amount of something, often a drug. An overdose may result in serious, harmful symptoms or death. If you take too much of something on purpose...

Poison
Oxalic acid poisoning
Oxalic acid is a poisonous, colorless substance. It is chemical known as a caustic. If it contacts tissues, it can cause severe damage, such as burning or ulcers, on contact. This article discusses poisoning...

Poison
Oxazepam overdose
Oxazepam is a medicine used to treat anxiety and symptoms of alcohol withdrawal. It belongs to the class of medicines known as benzodiazepines. Oxazepam overdose occurs when someone accidentally or intentionally...

P

Poison
Paint, lacquer, and varnish remover poisoning
This article discusses the harmful effects from swallowing or breathing in (sniffing) products to remove paint, lacquer, or varnish. lacquer varnish This article is for information only. DO NOT use it to...

Poison
Para-aminobenzoic acid
Para-aminobenzoic acid (PABA) is a natural substance. It is often used in sunscreen products. PABA is sometimes called vitamin Bx, but it is not a true vitamin. This article discusses reactions to PABA...

Poison
Paradichlorobenzene poisoning
Paradichlorobenzene is a white, solid chemical with a very strong odor. Poisoning can occur if you swallow this chemical. This article is for information only. DO NOT use it to treat or manage an actual...

Poison
Paraffin poisoning
Paraffin is a solid waxy substance used to make candles and other items. This article discusses what may occur if you swallow or eat paraffin. This article is for information only. DO NOT use it to treat...

Diseases & Conditions
Paraquat poisoning
Paraquat (dipyridylium) is a highly toxic weed killer (herbicide). In the past, the United States encouraged Mexico to use it to destroy marijuana plants. Later, research showed this herbicide was dangerous...

Poison
Pencil eraser swallowing
A pencil eraser is a piece of rubber attached to the end of a pencil. This article discusses the health problems that may occur if someone swallows an eraser. This article is for information only. DO NOT...

Poison
Pencil swallowing
This article discusses the health problems that may occur if you swallow a pencil. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you...

Poison
Pentazocine overdose
Pentazocine is a medicine used to treat moderate to severe pain. It is one of a number of chemicals called opioids or opiates, which were originally derived from the poppy plant and used for pain relief...

Poison
Pentobarbital overdose
Pentobarbital is a sedative. This is a medicine that makes you sleepy. Pentobarbital overdose occurs when a person intentionally or accidentally takes too much of the medicine. This article is for information...

Poison
Peppermint oil overdose
Peppermint oil is an oil made from the peppermint plant. Peppermint oil overdose occurs when someone swallows more than the normal or recommended amount of this product. This can be by accident or on purpose...

Special Topics
Personal protective equipment
PPE

Nutrition
Pesticides
Pesticides are pest-killing substances that help protect plants against molds, fungi, rodents, noxious weeds, and insects. Pesticides help prevent crop loss and, potentially, human disease. According to...

Poison
Petroleum jelly overdose
Petroleum jelly, also known as soft paraffin, is a semisolid mixture of fatty substances that are made from petroleum. A common brand name is Vaseline. This article discusses what happens when someone swallows...

Poison
Phencyclidine overdose
Phencyclidine, or PCP, is an illegal street drug. It can cause hallucinations and severe agitation. This article discusses overdose due to PCP. An overdose is when someone takes more than the normal or...

Poison
Pheniramine overdose
Pheniramine is a type of medicine called an antihistamine. It helps relieve allergy symptoms. Pheniramine overdose occurs when someone takes more than the normal or recommended amount of this medicine,...

Poison
Phenobarbital overdose
Phenobarbital is a medicine used to treat epilepsy (seizures), anxiety, and insomnia. It is in a class of medicines called barbiturates. Phenobarbital overdose occurs when someone intentionally or accidentally...

Poison
Phenothiazine overdose
Phenothiazines are medicines used to treat serious mental and emotional disorders, and to reduce nausea. This article discusses an overdose of phenothiazines. Overdose occurs when someone takes more than...

Poison
Phenytoin overdose
Phenytoin is a medicine used to treat convulsions and seizures. Phenytoin overdose occurs when someone accidentally or intentionally takes too much of this medicine. This is for information only and not...

Poison
Philodendron poisoning
Philodendron is a flowering houseplant. Philodendron poisoning occurs when someone eats pieces of this plant. This article is for information only. DO NOT use it to treat or manage an actual poison exposure...

Diseases & Conditions
Phlegmasia cerulea dolens
Phlegmasia cerulea dolens is an uncommon, severe form of deep venous thrombosis (blood clots in the vein). It most often occurs in the upper leg. deep venous thrombosis

Poison
Photographic fixative poisoning
Photographic fixatives are chemicals used to develop photographs. This article discusses poisoning from swallowing such chemicals. This article is for information only. DO NOT use it to treat or manage...

Poison
Pine oil poisoning
Pine oil is a germ-killer and disinfectant. This article discusses poisoning from swallowing pine oil. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If...

Poison
Piperonyl butoxide with pyrethrins poisoning
Piperonyl butoxide with pyrethrins is an ingredient found in medicines to kill lice. Poisoning occurs when someone swallows the product or too much of the product touches the skin. This article is for information...

Poison
Piroxicam overdose
Piroxicam is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve mild to moderate aches and pains and swelling. Piroxicam overdose occurs when someone accidentally or intentionally takes too much...

Diseases & Conditions
Plague
Plague is a severe bacterial infection that may cause death.

Poison
Plant fertilizer poisoning
Plant fertilizers and household plant foods are used to improve plant growth. Poisoning can occur if someone swallows these products. Plant fertilizers are mildly poisonous if small amounts are swallowed...

Poison
Plastic casting resin poisoning
Plastic casting resins are liquid plastics, such as epoxy. Poisoning can occur from swallowing plastic casting resin. Resin fumes may also be poisonous. This article is for information only. DO NOT use...

Poison
Plastic resin hardener poisoning
Poisoning can occur from swallowing plastic resin hardener. Resin hardener fumes may also be poisonous. This article is for information only. DO NOT use it to treat or manage an actual poison exposure....

Poison
Poinsettia plant exposure
Poinsettia plants, commonly used during the holidays, are not poisonous. In most cases, eating this plant does not result in a trip to the hospital. This article is for information only. DO NOT use it to...

Poison
Poison control center - emergency number
For a POISON EMERGENCY call: 1-800-222-1222 1-800-222-1222 ANYWHERE IN THE UNITED STATES This national hotline number will let you talk to experts in poisoning. This is a free and confidential service....

Poison
Poison ivy - oak - sumac
Poison ivy, oak, or sumac poisoning is an allergic reaction that results from touching the sap of these plants. The sap may be on the plant, in the ashes of burned plants, on an animal, or on other objects...

Special Topics
Poisoning

Poison
Poisoning - fish and shellfish
This article describes a group of different conditions caused by eating contaminated fish and seafood. The most common of these are ciguatera poisoning, scombroid poisoning, and various shellfish poisonings...

Injury
Poisoning first aid
Poisoning is caused by exposure to a harmful substance. This can be due to swallowing, injecting, breathing in, or other means. Most poisonings occur by accident. Immediate first aid is very important in...

Poison
Pokeweed poisoning
Pokeweed is a flowering plant. Pokeweed poisoning occurs when someone eats pieces of this plant. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you...

Poison
Potassium carbonate poisoning
Potassium carbonate is a white powder used to make soap, glass, and other items. It is a chemical known as a caustic. If it contacts tissues, it can cause severe damage, such as burning or ulcers, on contact...

Poison
Potassium hydroxide poisoning
Potassium hydroxide is a chemical that comes as a powder, flakes, or pellets. It is commonly known as lye or potash. Potassium hydroxide is a caustic chemical. If it contacts tissues, it can cause severe...

Tests
Potassium test
This test measures the amount of potassium in the fluid portion (serum) of the blood. Potassium (K+) helps nerves and muscles communicate. It also helps move nutrients into cells and waste products out...

Poison
Potato plant poisoning - green tubers and sprouts
Potato plant poisoning occurs when someone eats the green tubers or new sprouts of the potato plant. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If...

Poison
Prochlorperazine overdose
Prochlorperazine is a drug used to treat severe nausea and vomiting. It is a member of the class of medicines called phenothiazines, some of which are used to treat mental disturbances. Prochlorperazine...

Poison
Promethazine overdose
Promethazine is a medicine used to treat nausea and vomiting. Promethazine overdose occurs when someone takes too much of this medicine. It is in a class of drugs called phenothiazines, which were developed...

Poison
Propane poisoning
Propane is a colorless and odorless flammable gas that can turn into liquid under very cold temperatures. This article discusses the harmful effects from breathing in or swallowing propane. Breathing in...

Poison
Propoxyphene overdose
Propoxyphene is medicine used to relieve pain. It is one of a number of chemicals called opioids or opiates, which were originally derived from the poppy plant and used for pain relief or their calming...

Poison
Propyl alcohol
Propyl alcohol is a clear liquid commonly used as a germ killer (antiseptic). This article discusses poisoning from accidentally or intentionally swallowing propyl alcohol. It is the second most commonly...

R

Self-Care Instructions
Radial head fracture - aftercare
Elbow fracture - radial head - aftercare

Injury
Radiation sickness
Radiation sickness is illness and symptoms resulting from excessive exposure to ionizing radiation. There are two main types of radiation: nonionizing and ionizing. Nonionizing radiation comes in the form...

Special Topics
Recognizing medical emergencies
Getting medical help right away for someone who is having a medical emergency can save their life. This article describes the warning signs of a medical emergency and how to be prepared.

Poison
Refrigerant poisoning
A refrigerant is a chemical that makes things cold. This article discusses poisoning from sniffing or swallowing such chemicals. The most common poisoning occurs when people intentionally sniff a type of...

Poison
Rhubarb leaves poisoning
Rhubarb leaves poisoning occurs when someone eats pieces of leaves from the rhubarb plant. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone...

Self-Care Instructions
Rib fracture - aftercare
Broken rib - aftercare

Poison
Rubber cement poisoning
Rubber cement is a common household glue. It is often used for arts and crafts projects. Breathing in large amounts of rubber cement fumes or swallowing any amount can be extremely dangerous, especially...

S

Diseases & Conditions
SVC obstruction
SVC obstruction is a narrowing or blockage of the superior vena cava (SVC), which is the second largest vein in the human body. The superior vena cava moves blood from the upper half of the body to the...

Poison
Sachet poisoning
A sachet is a bag of perfumed powder or a mix of dried flowers, herbs, spices, and aromatic wood shavings (potpourri). Some sachets also contain aromatic oils. Sachet poisoning occurs when someone swallows...

Poison
Sassafras oil overdose
Sassafras oil comes from the root bark of the sassafras tree. Sassafras oil overdose occurs when someone swallows more than the normal or recommended amount of this substance. This can be by accident or...

Poison
Scorpion fish sting
Scorpion fish are members of the family Scorpaenidae, which includes zebrafish, lionfish and stonefish. These fish are very good at hiding in their surroundings. The fins of these prickly fish carry toxic...

Poison
Scorpions
This article describes the effects of a scorpion sting. This article for information only. DO NOT use it to treat or manage a scorpion sting. If you or someone you are with is stung, call your local emergency...

Poison
Secobarbital overdose
Secobarbital is a drug used to treat insomnia (difficulty falling or staying asleep). It is in a class of medicines called barbiturates. It may also be given before surgery to relieve anxiety. Secobarbital...

Diseases & Conditions
Sepsis
Sepsis is an illness in which the body has a severe, inflammatory response to bacteria or other germs.

Diseases & Conditions
Septic shock
Septic shock is a serious condition that occurs when a bodywide infection leads to dangerously low blood pressure.

Diseases & Conditions
Septicemia
Septicemia is bacteria in the blood (bacteremia) that often occurs with severe infections. Also called sepsis, septicemia is a serious, life-threatening response to an infection that gets worse very quickly...

Diseases & Conditions
Serotonin syndrome
Serotonin syndrome (SS) is a potentially life-threatening drug reaction. It causes the body to have too much serotonin, a chemical produced by nerve cells.

Tests
Serum free hemoglobin test
Serum free hemoglobin is a blood test that measures the level of free hemoglobin in the liquid part of the blood (the serum). Free hemoglobin is the hemoglobin outside of the red blood cells. Most of the...

Diseases & Conditions
Severe acute respiratory syndrome (SARS)
Severe acute respiratory syndrome (SARS) is a serious form of pneumonia. Infection with the SARS virus causes acute respiratory distress (severe breathing difficulty), and sometimes death. pneumonia acute...

Special Topics
Sexual violence
Sexual violence is any sexual activity or contact that occurs without your consent. It may involve physical force or the threat of force. It may occur due to coercion or threats. If you have been the victim...

Poison
Shampoo - swallowing
Shampoo is a liquid used to clean the scalp and hair. This article describes the effects of swallowing a liquid shampoo. This article is for information only. DO NOT use it to treat or manage an actual...

Poison
Shaving cream poisoning
Shaving cream is a cream applied to the face or body before shaving the skin. Shaving cream poisoning occurs when someone eats shaving cream. This can be by accident or on purpose. This article is for information...

Poison
Shellac poisoning
Shellac poisoning can occur from swallowing shellac. This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with has an exposure, call...

Injury
Shock
Shock is a life-threatening condition that occurs when the body is not getting enough blood flow. Lack of blood flow means the cells and organs do not get enough oxygen and nutrients to function properly...

Self-Care Instructions
Shoulder separation - aftercare
Separated shoulder - aftercare; Acromioclavicular joint separation - aftercare; A/C separation - aftercare

Symptoms
Skin - clammy
Clammy skin is cool, moist, and usually pale. pale

Injury
Skull fracture
A skull fracture is a fracture or break in the cranial (skull) bones. fracture

Diseases & Conditions
Sleeping sickness
Sleeping sickness is an infection caused by tiny parasites carried by certain flies. It results in swelling of the brain.

Injury
Snake bites
Snake bites occur when a snake bites the skin. They are medical emergencies if the snake is venomous. Venomous animals account for a large number of deaths and injuries worldwide. Snakes alone are estimated...

Poison
Sodium bisulfate poisoning
Sodium bisulfate is a dry acid that may be harmful if swallowed in large amounts. This article discusses poisoning from swallowing sodium bisulfate. This article is for information only. DO NOT use it to...

Tests
Sodium blood test
The sodium blood test measures the concentration of sodium in the blood. Sodium can also be measured using a urine test. urine test

Poison
Sodium carbonate poisoning
Sodium carbonate (known as washing soda or soda ash) is a chemical found in many household and industrial products. This article focuses on poisoning due to sodium carbonate. This article is for information...

Poison
Sodium hydroxide poisoning
Sodium hydroxide is a very strong chemical. It is also known as lye and caustic soda. This article discusses poisoning from touching, breathing in (inhaling), or swallowing sodium hydroxide. This is for...

Poison
Sodium hypochlorite poisoning
Sodium hypochlorite is a chemical commonly found in bleach, water purifiers, and cleaning products. Sodium hypochlorite is a caustic chemical. If it contacts tissues, it can cause injury. Swallowing sodium...

Poison
Solder poisoning
Solder is used to connect electric wires or other metal parts together. Solder poisoning occurs when someone swallows solder in large amounts. Skin burns can occur if solder touches the skin. This article...

Special Topics
Splinter removal
A splinter is a thin piece of material (such as wood, glass, or metal) that gets embedded just below the top layer of your skin.

Poison
Sports cream overdose
Sports creams are creams or ointments used to treat aches and pains. Sports cream overdose can occur if someone uses this product on open skin (such as an open sore or wound), or swallows or gets the product...

Diseases & Conditions
Staphylococcal meningitis
Meningitis is an infection of the membranes covering the brain and spinal cord. This covering is called the meninges. Meningitis Bacteria are one type of germ that may cause meningitis. The staphylococcal...

Poison
Starch poisoning
Starch is a substance used for cooking. Another kind of starch is used to add firmness and shape to clothing. Starch poisoning occurs when someone swallows starch. This can be by accident or on purpose...

Poison
Steam iron cleaner poisoning
Steam iron cleaner is a substance used to clean steam irons. Poisoning occurs when someone swallows steam iron cleaner. This article is for information only. DO NOT use it to treat or manage an actual poison...

Poison
Stingray
A stingray is a sea animal with a whip-like tail. The tail has sharp spines that contain venom. This article describes the effects of a stingray sting. Stingrays are the most common group of fish that sting...

Poison
Stoddard solvent poisoning
Stoddard solvent is a flammable, liquid chemical that smells like kerosene. Stoddard solvent poisoning occurs when someone swallows or touches this chemical. This article is for information only. DO NOT...

Poison
Stonefish sting
Stonefish are members of the family Scorpaenidae, or scorpion fish. The family also includes zebrafish and lionfish. These fish are very good at hiding in their surroundings. The fins of these prickly fish...

Symptoms
Subcutaneous emphysema
Subcutaneous emphysema occurs when air gets into tissues under the skin. This most often occurs in the skin covering the chest or neck, but can also occur in other parts of the body.

Poison
Sulfuric acid poisoning
Sulfuric acid is a very strong chemical that is corrosive. Corrosive means it can cause severe burns and tissue damage when it comes into contact with the skin or mucous membranes. This article discusses...

Poison
Sulindac overdose
Sulindac is a nonsteroidal anti-inflammatory drug (NSAID). It is used to relieve pain and swelling associated with certain types of arthritis. Sulindac overdose occurs when someone takes too much of this...

Poison
Swallowing chalk
Chalk is a form of limestone. Chalk poisoning occurs when someone accidentally or intentionally swallows chalk. This article is for information only. DO NOT use it to treat or manage an actual poison exposure...

Poison
Swallowing soap
This article discusses the health effects that may occur from swallowing soap. This can happen by accident or on purpose. Swallowing soap does not usually cause serious problems. This article is for information...

Poison
Swallowing sunscreen
Sunscreen is a cream or lotion used to protect the skin from sunburn. Sunscreen poisoning occurs when someone swallows sunscreen. This can be by accident or on purpose. This article is for information only...

Poison
Swimming pool cleaner poisoning
Swimming pool cleaner poisoning occurs when someone swallows this type of cleaner, touches it, or breathes in its fumes. These cleaners contain chlorine and acids. Chlorine is more likely than the acids...

T

Poison
Talcum powder poisoning
Talcum powder is a powder made from a mineral called talc. Talcum powder poisoning may occur when someone breathes in or swallows talcum powder. This can be by accident or on purpose. This article is for...

Poison
Tar remover poisoning
Tar remover is used to get rid of tar, a dark oily material. This article discusses health problems that may occur if you breathe in or touch tar remover. This article is for information only. DO NOT use...

Poison
Tarantula spider bite
This article describes the effects of a tarantula spider bite or contact with tarantula hairs. The class of insects contains the largest number of venomous species known. This article is for information...

Diseases & Conditions
Tetanus
Tetanus is an infection of the nervous system with a type of bacteria that is potentially deadly, called Clostridium tetani (C tetani). Clostridium tetani (C tetani)

Poison
Tetrahydrozoline poisoning
Tetrahydrozoline is a form of a medicine called imidazoline, which is found in over-the-counter eye drops and nasal sprays. Tetrahydrozoline poisoning occurs when someone accidentally or intentionally swallows...

Poison
Thiazide overdose
Thiazide is a drug in some medicines used to treat high blood pressure. Thiazide overdose occurs when someone takes more than the normal or recommended amount of this medicine.  This can be by accident...

Poison
Thioridazine overdose
Thioridazine is a prescription medicine used to treat serious mental and emotional disorders, including schizophrenia. Thioridazine overdose occurs when someone takes more than the normal or recommended...

Special Topics
Thrombolytic therapy
Thrombolytic therapy is the use of drugs to break up or dissolve blood clots, which are the main cause of both heart attacks and stroke.

Diseases & Conditions
Thrombotic thrombocytopenic purpura
Thrombotic thrombocytopenic purpura (TTP) is a blood disorder in which platelet clumps form in small blood vessels. This leads to a low platelet count (thrombocytopenia). thrombocytopenia

Poison
Thyroid preparation overdose
Thyroid preparations are medicines used to treat thyroid gland disorders. Overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on purpose...

Poison
Tick bite
Ticks are bugs that can attach to you as you brush past bushes, plants, and grass. Once on you, ticks often move to a warm, moist place on your body, like the armpits, groin, and hair. There, they typically...

Poison
Toilet bowl cleaners and deodorizers poisoning
Toilet bowl cleaners and deodorizers are substances used to clean and remove odors from toilets. Poisoning may occur if someone swallows toilet bowl cleaner or deodorizer. This article is for information...

Poison
Tolmetin overdose
Tolmetin is an NSAID (nonsteroidal anti-inflammatory drug). It is used to help relieve pain, tenderness, swelling, and stiffness due to certain types of arthritis or other conditions that cause inflammation...

Poison
Toluene and xylene poisoning
Toluene and xylene are strong compounds that are used in many household and industrial products. Toluene and xylene poisoning can occur when someone swallows these substances, breathes in their fumes, or...

Poison
Toothpaste overdose
Toothpaste is a product used to clean teeth. This article discusses the effects of swallowing a lot of toothpaste. This article is for information only. DO NOT use it to treat or manage an actual poison...

Diseases & Conditions
Toxic shock syndrome
Toxic shock syndrome is a serious disease that involves fever, shock, and problems with several body organs. shock

Tests
Toxicology screen
A toxicology screen refers to various tests that determine the type and approximate amount of legal and illegal drugs a person has taken.

Special Topics
Toxins
Toxins are substances created by plants and animals that are poisonous to humans. Toxins also include some medicines that are helpful in small doses, but poisonous in large amounts. Most toxins that cause...

Injury
Traumatic amputation
Traumatic amputation is the loss of a body part, usually a finger, toe, arm, or leg, that occurs as the result of an accident or injury.

Poison
Trazodone overdose
Trazodone is an antidepressant medicine. Sometimes, it is used as a sleep aid and to treat agitation in people with dementia. Trazodone overdose occurs when someone takes more than the normal or recommended...

Poison
Trisodium phosphate poisoning
Trisodium phosphate is a strong chemical. Poisoning occurs if you swallow, breathe in, or spill large amounts of this substance on your skin. This article is for information only. DO NOT use it to treat...

Poison
Turpentine oil poisoning
Turpentine oil comes from a substance in pine trees. Turpentine oil poisoning occurs when someone swallows turpentine oil or breathes in the fumes. Breathing these fumes on purpose is sometimes called ...

U

Injury
Unconsciousness - first aid
Unconsciousness is when a person is unable to respond to people and activities.  Doctors often call this a coma or being in a comatose state. coma Other changes in awareness can occur without becoming unconscious...

Tests
Urine drug screen
A urine drug screen is used to detect illegal and some prescription drugs in the urine.

V

Poison
Varnish poisoning
Varnish is a clear liquid that is used as coating on woodwork and other products. Varnish poisoning occurs when someone swallows varnish. It is a member of a class of compounds known as hydrocarbons. Exposure...

Tests
Venipuncture
Venipuncture is the collection of blood from a vein. It is most often done for laboratory testing.

W

Poison
Wart remover poisoning
Wart removers are medicines used to get rid of warts. Warts are small growths on the skin that are caused by a virus. They are usually painless. Wart remover poisoning occurs when someone swallows or applies...

Poison
Wasp sting
This article describes the effects of a wasp sting. This article is for information only. DO NOT use it to treat or manage a sting. If you or someone you are with is stung, call your local emergency number...

Self-Care Instructions
Water safety and drowning

Poison
Watercolor paints - swallowing
This article discusses the health problems that might occur when someone swallows watercolor paints. This can happen by accident or on purpose. This article is for information only. DO NOT use it to treat...

Diseases & Conditions
Waterhouse-Friderichsen syndrome
Waterhouse-Friderichsen syndrome (WFS) is a group of symptoms resulting from the failure of the adrenal glands to function normally as a result of bleeding into the gland.

Poison
Wax poisoning
Wax is a greasy or oily solid that melts in heat. This article discusses poisoning due to swallowing large amounts of wax or crayons. This article is for information only. DO NOT use it to treat or manage...

Special Topics
When to use the emergency room - child
Emergency room - child; Emergency department - child; Urgent care - child; ER - when to use

Poison
Window cleaner poisoning
Window cleaner poisoning occurs when someone swallows or breathes in large amounts of window cleaner. This can happen by accident or on purpose. This article is for information only. DO NOT use it to treat...

Poison
Windshield washer fluid
Windshield washer fluid is a brightly-colored liquid made of methanol, a poisonous alcohol. Sometimes, small amounts of other toxic alcohols, such as ethylene glycol, are added to the mixture. Some young...

Poison
Wood stain poisoning
Wood stains are products used for wood finishing. Wood stain poisoning occurs when someone swallows these substances. This article is for information only. DO NOT use it to treat or manage an actual poison...

Y

Poison
Yew poisoning
The yew plant is a shrub with evergreen-like leaves. Yew poisoning occurs when someone eats pieces of this plant. The plant is most poisonous in winter. This article is for information only. DO NOT use...

Z

Poison
Zinc oxide overdose
Zinc oxide is an ingredient in many products. Some of these are certain creams and ointments used to prevent or treat minor skin burns and irritation. Zinc oxide overdose occurs when someone eats one of...

Poison
Zinc poisoning
Zinc is a metal as well as an essential mineral. Your body needs zinc to function properly. If you take a multivitamin, chances are it has zinc in it. In this form, zinc is both necessary and relatively...