Low Urea In Kidney Test. Blood urea nitrogen test heart failure scripps health foundation. If you have suspected kidney failure.
It may be done. They may be seen in severe liver disease malnutrition and sometimes when a person is overhydrated too much fluid volume but the blood urea nitrogen test is not usually used to diagnose or monitor these conditions. The blood urea nitrogen bun test checks for other waste products in the blood such as urea nitrogen.
It is also used to check for severe dehydration.
Low blood urea nitrogen levels are not common and are not usually a cause for concern. Low blood urea nitrogen levels. It may be done. Lower urea levels are also seen in infants and small children.