Uric Acid, Timed Urine


Sunquest Code:UURICT  
Epic Code:LAB450Epic Name:Uric Acid Timed Urine
Order Instructions:Order UCRT in addition to UURICT. Enter collection volume and duration.
Synonyms:UURICT
Methodology:Bichromatic end point
CPT Code:84560, 81050
Test Includes:Urine uric acid and creatinine.
Turnaround Time:Performed and reported 24 hours/day.
Associated Links:

Urine Collection Procedure



Collection Instructions

Specimen:Urine, timed collection (20 to 28 hours)
Optimal Volume:Submit entire collection; analysis requires 1 mL
Patient Preparation:A number of drugs affect uric acid excretion; positive interferences may be caused by caffeine and theophylline. Drugs to avoid include aspirin and other anti-inflammatory preparations, x-ray contrast agents, vitamin C and warfarin.


Processing and Shipping

Specimen Processing:Mix collection well before aliquot is taken. Aliquot 5 mL, 1 mL minimum. Store at room temperature.
Shipping Instructions:Ship at room temperature.
Test Performed at or Referral Lab Chemistry  (Fairview Range - FRMC, UMMC-West Bank, UMMC-East Bank, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH)


Interpretive

Reference Range:0.25-0.75 g/24 hours; average diet
Use:Evaluate metabolism of urate, including gout and renal stones.


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