Test Code LAB748 Urea Nitrogen, Urine, 24 Hour
Methodology
Photometric/Urease
Performing Laboratory
RCH
Specimen Requirements
Specimen must arrive within 96 hours of collection.
10 mL from a 24-hour urine collection in a plastic urine container. No preservative. Send specimen refrigerated.
Note: 1. 24-Hour volume is required on request form for processing.
2. Follow instructions in “Urine Collection” in “Special Instructions.”
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
84540