Home
HelpTest Code UN 24 U Urea Nitrogen, 24 Hour, Urine
Performing Laboratory
| Memorial Hospital Laboratory- Automated Procedures | 304-388-5953 |
Specimen Requirements
Submit an entire 24-hour urine collection in a urine container without preservative (supplied) Refrigerate specimen during collection and send specimen on ice.
Start and end times of collection are required on request form for processing
24-Hour Urine Collection Instructions
Storage and Stability
Store at 2-8o C until analyzed
Reference Values
7,000-16,000 mg/day
Methodology
Photometric enzyamtic assay
Days Test Set Up and Turnaround
Monday through Sunday, Continuously
| AM Collection | Expected by 9AM same day |
| Routine | Expected within 24 hrs |
| Stat | Expected within 1 hr |
| Timed | Expected results are test dependant |
CPT Coding
84540
81050
Specimen Rejection
- Improperly labeled, collected, stored, and transported
- Quantity not sufficient