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Test Code Billings Clinic: 4171 Uric Acid, 24 Hour, Urine

Performing Laboratory

Billings Clinic Laboratory: Chemistry

Useful For

Assessment and management of patients with kidney stones, particularly uric acid stones

Methodology

Uricase / Bichromatic endpoint

Specimen Requirements

  • 10 mL from a 24-hour urine collection in a urine container containing NaOH
  • Keep specimen at room temperature during collection, and send specimen ambient and at an alkaline pH.
  • 24-Hour volume is required on request form for processing.
  • Follow instructions in “Urine Collection” under Resources

Storage/Stability

Type Temperature Time
Urine (Alkaline) Ambient 4 days

Reference Values

150 - 990 mg/24 hours

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

84560 - Uric acid, other source

LOINC Code Information

Reporting Name LOINC Code
Uric Acid, Urine, 24 Hour 21587-1