Urea nitrogen, timed urine-264
Test info
Urea nitrogen, timed urine
264
84540.0
UUN
Specimen
Urine, 24 hr
8mL aliquot from a 24 hr collection
- Measure and record the total urine volume on request and/or aliquot tube.
- Mix well
- Tranfer an 8.0 mL mixed aliquot in a Urine aliquot transport vial/tube - 10mL (AHL)
24 hr urine collection container, no additive
Refrigerated (preferred) - 7 days
Ambient - 2 days
Frozen - 1 month
- Improper labels (unlabeled or mislabeled)
- Delay in transport
- Improper storage temperature affecting results
- Inappropriate timing of collection
- Improper container
- Leaking container resulting in compromised specimen
- Quantity not sufficient (QNS)
Performance
AHL - Chemistry: C
Daily
1 day
Enzymatic (Urease)
Clinical and Interpretive info
12.0 - 20.0 g/24 hrs
Billing
84540
Tracking
11/30/2001
02/18/2020
01/12/2024