What Does BUN Stand For?

BUN stands for Blood Urea Nitrogen

Blood Urea Nitrogen (BUN) is a medical test that measures the amount of urea nitrogen in the blood. Urea is a waste product formed from the breakdown of proteins in the body, and BUN levels help assess kidney function and overall metabolic state. Elevated or reduced BUN levels can indicate various health conditions, such as kidney disease, dehydration, or liver dysfunction, making it a valuable marker in clinical diagnostics.