Uric AcidMain Content
Test Code: 905
CPT Code(s): 84550
Methodology: Spectrophotometry (SP)
Clinical Significance: Serum uric acid measurements are useful in the diagnosis and treatment of numerous renal and metabolic disorders, including renal failure, gout, leukemia, psoriasis, starvation or other wasting conditions, and in patients receiving cytotoxic drugs.
Additional names: Not applicable
Supply: #193262 Red/Gray SST 8.5mL
Preferred Specimen Requirements: Serum
Preferred Volume: 1mL
Container Type: Serum Separator tube (SST)
Patient Preparation: The assay manufacturer, Beckman Coulter advises: "N-acetyl cysteine (NAC), when administered in therapeutic concentrations (for the treatment of acetaminopehn overdose), has been determined to interfere with assays for cholesterol and uric acid" where "NAC interference may lead to falsely low results." According to Beckman Coulter the NAC interference should be insignificant by 12 hours after completion of the intial loading dose of an IV infusion treatment regimen consisting of an intial loading dose of 150 mg/kg administered over 1 hour, a second dose of 50 mg/kg administered over 4 hours and a third dose of 100 mg/kg administered over 16 hours.
Transport Temperature: Room Temperature
Specimen Stability: Room Temperature: 72 hours
Reject due: Specimens exceeding stability; Unlabeled or improperly labeled specimens; Specimens other than serum
For additional supply or collection device information, please contact DLO's Customer Service at (800) 891-2917, option 2.
The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.