Urea is the end product of protein metabolism. Urinary urea nitrogen reflects the amount of protein destruction. In severely ill patients it is useful in assessing the necessary protein replenishment.
10 mL (5 mL min.) aliquot of 24 hour urine. Do not use preservatives. Refrigerate during and after collection. Ship refrigerated or frozen. Record 24 hour volume on test request form and urine container.
Urease UV
Daily
Urea is the end product of protein metabolism. Urinary urea nitrogen reflects the amount of protein destruction. In severely ill patients it is useful in assessing the necessary protein replenishment.
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Refrigerate urine sample during and after collection.