2078: Urea Nitrogen, Urine 24 Hr
Test Code
Test Synonym
- 24 hour urine Urea Nitrogen
Volume
Minimum Volume
Specimen Requirements
Container
- 24 Hour Urine Container, Container- Urine
Storage
Turn Around Time
Special Instructions
- 10 mL aliquot of entire well- mixed collection in Plastic urine container, no preservative
Additional Information
- Refrigerate the specimen as it is collected. Instruct the patient to void at 8 AM and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning). Screw the lid on securely. Container must be labeled with patient's full name, date and time collection started, and date and time collection finished. Record total 24-hour urine volume on the request form.
Specimen Stability
- AMB IENT : 2 days REFRIGERATED : 7 days FROZEN: 1 month
Reference Range
-
Fasting |
Sex |
Message Lines |
Ref Ranges |
Unit of Measure |
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12 - 20 g/24 Hr |
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