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Uric Acid
Test CodeURIC
CPT Codes
84550
Preferred Specimen
GREEN Lithium Heparin Plasma
Minimum Volume
0.25 mL
Other Acceptable Specimens
SST Serum Separator, Red No Gel
Instructions
Separate from cells within 4 hours of collection
Transport Container
GREEN Lithium Heparin
Transport Temperature
Room Temperature
Specimen Stability
Room Temp: 3 Days; Refrigerated: 5 Days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Not separated from cells within 4 hours of collection, Gross hemolysis
Methodology
Vitros 7600/3400
Reference Range
Female: 2.5-6.2 mg/dL; Male: 3.5-8.5 mg/dL
Clinical Significance
Uric acid is the end product of purine metabolism. Elevations of uric acid occur in renal failure, prerenal azotemia, gout, lead poisoning, excessive cell destruction (e.g., following chemotherapy), hemolytic anemia, and congestive heart failure and after myocardial infarction. Uric acid is also increased in some endocrine disorders, acidosis, toxemia of pregnancy, hereditary gout, and glycogen storage disease type I. A low uric acid concentration may be found following treatment by some drugs (e.g., low-dose aspirin), with low dietary intake of purines, in the presence of renal tubular defects, and in xanthinuria.
Performed By
RFGH Laboratory
Performing Laboratory
RFGH Laboratory
