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Test Code LAB13 Uric Acid, Plasma or Serum

Additional Codes

Test Name in EPIC EPIC Test Code Mnemonic
URIC ACID LAB13 URIC

 

Useful For/Utility

Diagnosis and treatment of renal failure

Monitoring patients receiving cytotoxic drugs and a variety of other disorders, including gout, leukemia, psoriasis, starvation and other wasting conditions.

Clinical Information

Uric acid is a metabolite of purines, nucleic acids, and nucleoproteins. Consequently, abnormal levels may be indicative of a disorder in the metabolism of these substances. Hyperuricemia may be observed in renal dysfunction, gout, leukemia, polycythemia, atherosclerosis, diabetes, hypothyroidism, or in some genetic diseases. Decreased levels are present in patients with Wilson’s disease.

Methodology

Uricase

Specimen Requirements

Submit only 1 of the following specimens:
 

Preferred:

Specimen Type: Plasma

Container/Tube: Light-green top (lithium heparin gel)

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.5 mL

Collection Instructions:

1. Hemolyzed specimen is not acceptable.

2. Spin down and separate plasma from cells within 2 hours of draw.

3. If plunger filters are used, immediate removal of plasma is indicated unless an air gap can be created between the device and specimen.
Additional Information:

1. Avoid repeated freeze/thaw cycles.

2. If extreme lipemia-use ultracentrifuged specimen.

3. Label specimen appropriately (plasma).

 

Alternate:

Specimen Type: Serum

Container/Tube: Serum gel

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.5 mL

Collection Instructions:

1. Hemolyzed specimen is not acceptable.

2. Spin down and separate serum from cells within 2 hours of draw.

3. If plunger filters are used, immediate removal of serum is indicated unless an air gap can be created between the device and specimen.
Additional Information:

1. Avoid repeated freeze/thaw cycles.

2. If extreme lipemia-use ultracentrifuged specimen.

3. Label specimen appropriately (serum).

Specimen Transport Temperature

Refrigerate 5 Days/Ambient 3 Days/Frozen 6 Months

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

84550

Reference Values

0-14 days: 2.8-12.7 mg/dL

15 days-1 year: 1.5-6.3 mg/dL

1-11 years: 1.8-4.9 mg/dL

Males 12-18 years: 2.6-7.62 mg/dL

Females 12-18 years: 2.6-5.9 mg/dL

Adult Males: 3.2-8.2 mg/dL

Adult Females: 2.0-7.4 mg/dL

Performing Laboratory - Chemistry

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