Home
HelpTest Code LAB449 Urea Nitrogen, 24 Hour, Urine
Additional Codes
46627
Reporting Title
24-Hour Urine Urea
Methodology
Roche Diagnostics- RMH, GMC, MH
Useful for evaluation of kidney function.
Performing Laboratory
OhioHealth Laboratory Services-RMH, GMC, MH Core Laboratory
Specimen Requirements
5 mL from a 24-hour urine collection in a screw-capped, plastic urine container. No preservative. Mix well before taking 5-mL aliquot.
Note: 1. 24-Hour volume is required on request form for processing.
2. Follow instructions in “Urine Collection” in “Special Instructions.”
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated | 7 days |
| Ambient | 2 days | |
| Frozen | 1 month |
Specimen Transport Temperature
Ambient/Refrigerate OK/Frozen OK
Reference Values
12-20 g/24 hours
Day(s) Test Set Up
Monday through Sunday; Continuously
Test Classification and CPT Coding
84540