Description
Blood Urea Nitrogen (BUN): Blood Urea Nitrogen (BUN) is a test that measures the amount of nitrogen in the blood that comes from urea, a waste product produced when the liver breaks down proteins. BUN levels are used to evaluate kidney function, as the kidneys are responsible for filtering urea from the blood and excreting it in the urine. Elevated BUN levels can indicate kidney disease, dehydration, or heart failure, while lower levels might suggest liver disease or malnutrition. This test is typically included in routine blood panels to help monitor overall health and diagnose various medical conditions.