Kidney function tests

Kidney function tests are common lab tests used to evaluate how well the kidneys are working. Such tests include:

Kidney anatomy

The kidneys are responsible for removing wastes from the body, regulating electrolyte balance and blood pressure, and the stimulation of red blood cell production.

Kidney - blood and urine flow

This is the typical appearance of the blood vessels (vasculature) and urine flow pattern in the kidney. The blood vessels are shown in red and the urine flow pattern in yellow.

Kidney function tests

Blood or urine is commonly collected to test for how the kidneys are functioning. Some kidney function tests include creatine, creatinine-urine, creatine clearance, and BUN test.