Your doctor may order a blood urea nitrogen test, also known as BUN test, to see how well your kidneys are working. Find out more from WebMD.

Get the facts on the blood urea nitrogen (BUN) test, which is commonly used to determine how well your kidneys are working. Learn how to prepare for the test, what to expect during the test, and ...

A BUN test can show the fitness of the kidneys and liver. A BUN test measures how much urea nitrogen a person has in their blood. Urea nitrogen is produced when the body breaks down protein.

Blood Urea Nitrogen Test. Normal Lab Value: 7-20 milligrams per decaliter (mg/dl) The BUN, or blood urea nitrogen test, is another way to determine if the kidneys are successfully filtering the blood.

The blood urea nitrogen (BUN) test is a common blood test. Before the test, tell your doctor about any medications you’re taking. You might have to stop taking any that might affect the outcome ...

Blood Urea Nitrogen (BUN) Test. Medically reviewed by Carissa Stephens, R.N., CCRN, CPN. Get the facts on the blood urea nitrogen (BUN) test, which is commonly used to determine how well your ...