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24 HR URINE URIC ACID PANEL (WRJ)
MessageCHEMISTRY
Test Code
24 HR UA URIC
Alias/See Also
24 HR URINE URIC
Includes
TOTAL VOLUME, URINE URIC ACID, URINE CREATININE
Preferred Specimen
24 HR URINE
Minimum Volume
20 ML
Instructions
OBTAIN 24HR URINE CONTAINER FROM THE LAB. THIS IS A DRY URINE JUG. DATE AND TIME OF COLLECTION AT THE START OF COLLECTION, AND AT THE END OF COLLECTION MUST BE RECORDED ON THE JUG. KEEP ON ICE DURING COLLECTION PERIOD.24 HR URINE WITH pH >8.0 w/Na Hydroxide AFTER collection.
Transport Container
24 HR URINE -NO PRESERVATIVE
Transport Temperature
REFRIGERATED OR CONTAINER ON ICE
Specimen Stability
Room temperature: 4 days at pH >8
Refrigerated (2-8°C): No recommendation
Frozen (-20°C or colder): Unstable
Refrigerated (2-8°C): No recommendation
Frozen (-20°C or colder): Unstable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
IMPROPER COLLECTION CONTAINER
Methodology
Uricase
Setup Schedule
DAILY:MON-FRI
Report Available
24-48 HRS
Reference Range
0.2-0.8 g/24h
Clinical Significance
Urine uric acid may supplement serum uric acid testing when trying to identify conditions in which there is alteration of uric acid production or excretion, e.g., gout, leukemia, renal disease. The amount of uric acid excreted may be useful in treating asymptomatic hyperuricemia. Measurement of urine uric acid is important in the investigation of urolithiasis.
Performing Laboratory
WHITE RIVER JUNCTION VT VA-CHEMISTRY 802-295-9363 EXT: 5518, 5519
