Antithyroid microsomal antibody

Thyroid antimicrosomal antibody; Antimicrosomal antibody; Microsomal antibody; Antithyroid microsomal antibody; TPOAb; Anti-TPO antibody

Microsomes are found inside thyroid cells. The body produces antibodies to microsomes when there has been damage to thyroid cells. The antithyroid microsomal antibody test measures these antibodies in the blood.

Blood test

Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.

How the Test is Performed

How the Test will Feel

Why the Test is Performed

Normal Results

What Abnormal Results Mean

Risks