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Urea Nitrogen, 24 Hour, Urine*

Important Note

*This test is orderable in Cerner as Urea Nitrogen 24 Hour Urine

Methodology

Colorimetric Absorbance

Performing Laboratory

Rutland Regional Medical Center Laboratory

Specimen Requirements

Specimen Type: Urine, 24-hour collection
Container/Tube: Plastic container
Specimen Volume: Entire 24-hour collection
Collection Instructions:
1. No preservative.
2. 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

Refrigerated

Reference Values

7-20 g/24 hours

Day(s) Performed

Daily

Analytical Time:

1 day

Test Classification and CPT Coding

81050-Urine timed measurement

84540-Urea nitrogen

Special Instructions