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Test Code URIC Uric Acid, LAB141

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

Container/Tube:

Preferred: Green-top (lithium heparin) tube

Acceptable: Gold-top serum gel tube, plain red-top tube, EDTA plasma (EDTA plasma values are approximately 7% lower than serum values)

Specimen Volume: A minimum volume of 2.3 µL plus a dead volume of plasma or serum

Stability:Separate specimens within two hours of collection and analyze immediately.

            Stability in serum or plasma is 3 days at 20-25 ⁰C, 7 days at 4-8 ⁰C, or 6 months at -20 ⁰C.

Reference Values

Males: 3.4-7.0 mg/dL
Females: 2.4-5.7 mg/dL

Day(s) Test Set Up

Monday through Sunday

Useful For

Uric acid is a waste product, derived from purines in the diet and those synthesized in the body.  The healthy adult human body contains about 1.1 g of uric acid and about one sixth of this is present in the blood with the remainder being in other tissues.  The blood uric acid level reflects the balance between uric acid production and excretion.

Methodology

Uricase Enzymatic colorimetric test

Test Classification and CPT Coding

84550

Report Available

Within 1 hour of receipt