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. Urea nitrogen is ...

But there’s another powerhouse ingredient quietly doing serious work in your favorite moisturizers: urea. Urea is a naturally ...

The use of blood urea nitrogen (BUN) concentration as a measure of renal function is even less reliable, because BUN levels can be affected by the presence of gastrointestinal bleeding or by the ...