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blood urea nitrogen


Definition: nitrogen, in the form of urea, in the blood; the most prevalent of nonprotein nitrogenous compounds in blood; blood normally contains 10–15 mg of urea/100 mL. Measurements in the laboratory are commonly used as a measure of renal function.

See Also: urea nitrogen

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.