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HelpTest Code URIC.1 URIC ACID
Methodology
Colorimetric
Uric acid measurements are used in the diagnosis and treatment of renal failure and monitoring patients receiving cytotoxic drugs; and a variety of other disorders, including gout, leukemia, psoriasis, starvation, and other wasting conditions.
Specimen Requirements
Submit only 1 of the following specimens:
Preferred:
Serum
Serum Gel Tube
Container/Tube: Serum gel tube(s)
Specimen Volume: 1 mL (minimum
volume: 0.5 mL) of serum
Collection Instructions: Spin down within 4 hours of draw.
Note: Label specimen appropriately (serum).
*Special handling is required for patients being treated with rasburicase (Elitek*)
- Draw in a pre-chilled lithium heparin tube and place in an ice water bath immediately after collection.
- Centrifuge in a pre-cooled centrifuge (4 C).
- Place separated sample in ice water until analyzed.
- Complete testing within 4 hours of collection.
- Collect samples using special handling for 4 days after last dose of rasburicase is administered.
Alternate:
Serum
Plain, Red-Top Tube
Container/Tube:
Plain, red-top tube(s)
Specimen Volume: 1 mL (minimum
volume: 0.5 mL) of serum
Collection Instructions: Spin down within 4 hours of draw.
Note: Label specimen appropriately (serum).
Plasma
Container/Tube: Green-top (lithium heparin) tube(s)
Specimen Volume: 1 mL (minimum volume: 0.5 mL) of plasma
Collection Instructions: Spin down within 4 hours of draw.
Note: Label specimen appropriately (plasma).
Day(s) Test Set Up
Monday through Sunday
Reference Values
Males
<1 month: 1.9-7.9 mg/dL
1 month-12 years: 1.9-5.5 mg/dL
>12 years: 3.5-8.0 mg/dL
Females
<1 month: 1.9-7.9 mg/dL
1 month-12 years: 1.9-5.5 mg/dL
>12 years: 2.5-7.0 mg/dL
Performing Laboratory
Logan Health Medical Center-Chemistry
Test Classification and CPT Coding
84550
Specimen Transport Temperature
Refrigerate