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Test Code UREA24 Urea Nitrogen, 24 Hour, Urine

Performing Laboratory

Northwell Health Laboratories

Methodology

Urease

Reference Values

6-17 g/24 hours

Test Classification and CPT Coding

81050 - urine timed measurement

84540 - urea nitrogen

Day(s) and Time(s) Performed

Monday through Sunday

Physician Office Specimen Requirements

Submit an entire 24-hour urine collection. No preservative. Refrigerate specimen during collection, and send specimen refrigerated in a plastic urine container.

Note:  Starting and ending times of collection are required on request form for processing.