The meaning of BUN is a sweet or plain small bread; especially : a round roll.

A BUN, or blood urea nitrogen test, measures the amount of urea nitrogen in your blood. Urea nitrogen is a waste product that forms as your body breaks down proteins.

The blood urea nitrogen (BUN) test measures how much urea nitrogen is in your blood. BUN levels vary. High levels may indicate kidney damage.

Nov 22, 2025 · The BUN blood test measures the amount of urea nitrogen in your blood. If your levels are outside the normal range, this might mean either your liver or kidneys are not …

BUN definition: blood urea nitrogen: the concentration of nitrogen in the blood in the form of urea, indicating kidney function. See examples of BUN used in a sentence.

Aug 5, 2023 · A common blood test, the blood urea nitrogen (BUN) test reveals important information about how well your kidneys are working. A BUN test measures the amount of …

Sep 25, 2025 · A blood urea nitrogen (BUN) test measures the amount of nitrogen in your blood that comes from the waste product urea. Urea is formed when protein is broken down in your …

A blood urea nitrogen (BUN) test measures the amount of urea nitrogen found in your blood. Urea nitrogen is a waste product made when your liver breaks down protein.

Aug 21, 2025 · Blood urea nitrogen (BUN) is a product of protein metabolism that gets excreted in the urine. BUN levels are often tested as a measure of kidney function and can help to …

Sep 23, 2025 · When your doctor orders routine bloodwork, one of the markers that may appear on your lab report is Blood Urea Nitrogen (BUN). While it may look like just another medical …