Having low BUN levels doesn’t necessarily indicate a kidney problem. Depending on the cause, you may need to focus on drinking more water and eating less protein. A blood urea nitrogen (BUN) test is ...

Doctors order a blood urea nitrogen (BUN) test to measure the amount of urea nitrogen in your blood. It helps them see how well your kidneys are working. A BUN test measures how much blood urea ...

Your body creates ammonia when it breaks down protein from foods. Ammonia contains nitrogen, which mixes with other elements in your body, including carbon, hydrogen, and oxygen, to form urea. Urea is ...