What is the normal range for Blood Urea Nitrogen (BUN) levels?

The normal range for Blood Urea Nitrogen (BUN) levels is 10-20 mg/dL. BUN is a blood test that measures the amount of nitrogen in your blood that comes from the waste product urea. Urea is produced in the liver when protein is broken down and is a byproduct of protein metabolism.

Normal BUN levels indicate that the kidneys are functioning properly, as they are responsible for filtering urea out of the blood. Levels outside the normal range can indicate various conditions, including dehydration, kidney disease, or a high-protein diet. Therefore, a BUN range of 10-20 mg/dL is considered optimal for healthy adults, reflecting a typical metabolic state and proper renal function.