Uric Acid (UAB)

Department: Chemistry
Test Synonym(s): LAB141, UAB, Uric Acid Blood
CPT Codes: 84550
Methodology: Uricase
Reference Range: 0-14 days: 2.8-12.7 mg/dL; 15 days-<1 yr: 1.6-6.3 mg/dL; 1-<12yrs: 1.8-4.9 mg/dL; 12-<19yrs: 2.6-5.9 mg/dL (female), 2.6-7.6 mg/dL (male); 19-150 yrs: 2.6-6.0 mg/dL (female); 3.5-7.2 mg/dL (male) (Pediatric Reference Ranges only verified for serum, see CALIPER Study in Colantonio DA, et.al Clin Chem 2012;58(5):854-868.)
Tube Type: Light green top PST (Lithium Heparin with gel)
Specimen: Plasma
Alternate Specimen: Red top (no gel)
Pediatric Requirements: 1 light green top microtainer
Volume: 2 mL plasma
Minimum Volume: 1 light green top
Temperature: Separate within one hour and store at 2-8C until delivery
Stability: Refrigerated: 3 days; Frozen: 6 months
Reasons for Rejection: Hemolysis; improper collection
Days Performed: Daily
Times Performed: Continuous
TAT: STAT: 1 hour; ROUTINE: 2 hours after receiving in lab
Special Instructions: Chemotherapy agents may interfere

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