Single Lab Test

Urea Nitrogen, 24-Hour Urine

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Categories
Turnaround Time
Within 1 day
CPT Code
84540
Test Type

10 mL aliquot, Urine (24-hour)

Overview

Renal function test; coarse nitrogen-wasting test on patients on hyperalimentation; indicate nitrogen balance in hyperalimentation; rule out tap of urinary bladder in amniocentesis, paracentesis.

 

Collection Details

Patient Preparation:

Collection Instructions:

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