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HelpTest Code Billings Clinic: 4168 Urea Nitrogen, Timed, Urine
Performing Laboratory
Billings Clinic Laboratory: Chemistry
Useful For
Assessment of protein intake and/or nitrogen balance
Methodology
Urease with GLHD / Bichromatic Rate
Specimen Requirements
- 10 mL from a timed urine collection in a urine container.
- Refrigerate specimen during collection, and send specimen refrigerated.
- Starting and ending times of collection and total volume are required on request form for processing.
Storage/Stability
| Type | Temperature | Time |
| Urine | Refrigerated (if presesrved with Thymol) | 4 days |
Reject Due To
- Specimen received at room temperature
- Specimen received frozen
Reference Values
No established normal range
Day(s) Test Set Up
Daily
Test Classification and CPT Coding
84520 - Urea nitrogen, quantitative
LOINC Code Information
| Reporting Name | LOINC Code |
| Urea Nitrogen, Timed, Urine | 3096-5 |