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Test Code UR24U Urea Nitrogen, 24 Hour, Urine

Methodology

Enzymatic

Performing Laboratory

St. Clair Hospital Laboratory

Specimen Requirements

Submit an entire 24-hour urine collection in a urine container supplied. No preservative. Refrigerate specimen during collection, and send specimen refrigerated.
Note:  1. Starting and ending times of collection are required on request form for processing.
2. Follow instructions in “Urine Collection” in “Special Instructions.”

Reference Values

12-20 g/24 hours

Day(s) Test Set Up

Monday through Sunday

Special Instructions