When this happens, waste products stay in the body. This buildup of blood urea nitrogen (BUN) and creatinine in the blood is called azotemia. You may not notice symptoms of kidney problems like ...

Using a formula that includes creatinine level ... 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 ...

Urea, with the formula CO(NH2)2, is a chemical compound that is widely used in a range of sectors, including manufacturing, ...