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Epic Test Code LAB141 Uric Acid

Performing Location(s)

BMC

Specimen Type

Serum or Plasma

Preferred Container

Gold or Red top tube

Alternate Container

Green top tube

Blood Tube Draw Volume

Min 50% draw volume  

Minimum Volume to Submit for Testing

0.5 mL Serum or Plasma

  • Multiple test can be performed from this volume. For question please contact the lab at 547-3975.  

Storage Requirements

Sample tubes should be centrifuged within 2 hours of collection 

Gold tops are stable in original tubes for 7 days DO NOT ALIQUOT

Aliquot Red tops

See Causes of Rejection for temperature requirements.

Transportation Needs

Deliver specimen to laboratory within 1 hour of collection if unspun. If not possible see "storage Requirements". 

Causes for Rejection

Mislabeled or unlabeled specimen
Less than 50% draw for Vacutainer tubes
>5 days Refrigerated
> 48 hours Room Temp
>6 months Frozen
Hemolysis > 500 mg/dL HgB
Lipemia > 1000 mg/dL Trig
Bilirubin > 40 mg/dL Bili

Limitations

Lipemia with triglyceride of 600 mg/dL decreases the URCA result by 0.2 mg/dL  at a uric acid level of 4.3 mg/dL.

 

Xanthine has been reported to decrease the URCA result by 40%.

 

Collecting blood work after administration of Metamizole (Sulpyrine) can lead to falsely depressed values.  

Reference Values

Population Units Reference Range
Female mg/dl 2.3-6.6
Male mg/dl 4.4-7.6

 

Days of Analysis

All

Available STAT

No

Methodology

Beckman AU/Dx Series

CPT Code

84550

Last Updated

26-OCT-24 MS