<P> Blood urea nitrogen ( BUN ) is a medical test that measures the amount of urea nitrogen found in blood . The liver produces urea in the urea cycle as a waste product of the digestion of protein . Normal human adult blood should contain between 6 and 20 mg of urea nitrogen per 100 ml ( 6 -- 20 mg / dL ) of blood . Individual laboratories will have different reference ranges as the assay used will vary between laboratories . </P>
<P> Blood urea nitrogen ( BUN ) is a medical test that measures the amount of urea nitrogen found in blood . The liver produces urea in the urea cycle as a waste product of the digestion of protein . Normal human adult blood should contain between 6 and 20 mg of urea nitrogen per 100 ml ( 6 -- 20 mg / dL ) of blood . Individual laboratories will have different reference ranges as the assay used will vary between laboratories . </P>
what is the normal range for urea nitrogen
what is the normal range for urea nitrogen
between 6 and 20 mg of urea nitrogen per 100 ml ( 6 -- 20 mg / dL ) of blood
between 6 and 20 mg of urea nitrogen per 100 ml ( 6 -- 20 mg / dL ) of blood