Blood urea nitrogen, also called BUN, is a waste product in the blood from the breakdown of protein. The kidneys filter blood to remove urea, which then leaves the body in the urine. As kidney function decreases, BUN levels increase.
- Q What is the basic metabolic panel blood test?
- Q What is pH?
- Q What is a blood urea nitrogen (BUN) test?
- Q What questions should I ask my doctor about cholesterol tests?
- Q What do the doctors look for in the pleural fluid analysis?
- Q How often should my homocysteine levels be checked?