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 does it mean to have a high CPK reading?
- Q What is a blood urea nitrogen (BUN) test?
- Q How can saliva testing help diagnose disease?
- Q What does Trans Epidermal Water Loss (TEWL) measure?
- Q What is a sickle cell solubility test?
- Q How often should my homocysteine levels be checked?