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Urea Nitrogen 24 Hour Urine (UUN)

Additional Codes

LAB6510

 

Performing Laboratory

MBMC Main Laboratory

Methodology

Urease with GLDH (Glutamate dehydrogenase)

Specimen Requirements

Specimen Type: Urine, 24 hour
Container/Tube: Plastic urine container
Specimen Volume: Entire 24-hour collection
Collection Instructions: No preservative. Refrigerate specimen during collection.
 

Additional Information:
1. Starting and ending times of collection are required.
2. Follow instructions in Urine Collection in Special Instructions.

Specimen Transport Temperature

Ambient

Day(s) Test Set Up

Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: within 4 hours

Reference Values

>18 yrs: 5-20 g/24 hours

Test Classification and CPT Coding

 

Test Classification:This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer’s instructions.
CPT Code:
81050-Volume measurement for timed collection

 

 

84540-Urea nitrogen

 

Special Instructions