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Uric Acid, Random Urine without Creatinine
Test Code14580
CPT Codes
84560
Preferred Specimen
10 mL aliquot random urine collected in a urinalysis transport (yellow-top) tube
Minimum Volume
2 mL
Other Acceptable Specimens
Urine in a plastic leak-proof container
Instructions
Do not acidify urine. Please aliquot for uric acid testing prior to addition of any acid for those tests requiring preservative.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 13 days
Rrefrigerated: 13 days
Ffrozen: 28 days
Rrefrigerated: 13 days
Ffrozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Acid preserved urine
Methodology
Spectrophotometry (SP)
Setup Schedule
Set up: Daily; Report available: Next day
Reference Range
Not established
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.
