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HelpUrea Nitrogen, 24 Hour Urine
eDH Procedure Code(s)
LAB449 Urea Nitrogen, Urine, 24 hour
Collection Questions
- Enter duration of urine collection (hr)
- Enter volume of urine collected (ml)
Collection Information
24 hour urine collection without preservative. Urine must be kept refrigerated during collection.
Specimen Information
| Specimen Type | Specimen Source | Acceptable Containers | Minimum Test Volume (mL) | |
|---|---|---|---|---|
| Urine | Urine, 24 Hour | 24hUr-R | 0.1 | |
Shipping and Handling
Processing Instructions: No pH AdjustmentTransport Temperature: Refrigerated
Transport Instructions: N/A
Specimen Stability Unprocessed
Unprocessed: N/A
Specimen Stability Post Processing
Ambient: 2 Days
Refrigerate: 7 Days
Frozen: 1 Month
Test Components
| Component | LOINC Code |
|---|---|
| TIME COLLECTED | 74751-9 |
| TOTAL VOLUME | 3167-4 |
| UREA NITROGEN, 24 HOUR URINE | 12967-6 |
Turnaround Time (TAT)
STAT 1 Hour
Routine 4 Hours
CPT Code(s)
LAB449 Urea nitrogen, urine, 24 hour: 84540
81050
Performing Lab Section
Chemistry
Performing Lab(s)
Cheshire Medical Center Laboratory (CHE)
Dartmouth Hitchcock Medical Center Laboratory (MHMH)