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Test Code 1150 Uric Acid, Urine, Random

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Enzymatic (Uricase)

Literature Reference:

Package insert: Uric acid plus. Roche Corp., 10/2015.

Specimen Requirements

Specimen Type: Urine, random
Container/Tube: Urine Complete Cup Kit
Specimen Volume: 10 mL
 

Collection Instructions: No additive.

Additional Information: See Urine Collection in Special Instructions for additional information.

Day(s) Test Set Up

Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: 2 to 4 hours after receipt in laboratory

Reference Values

No established reference intervals

Literature Reference:

Tietz, Burtis CA, Ashwood ER, Bruns DE eds: Textbook of Clinical Chemistry and Molecular Diagnostics 5th ed: Chapter 25, p.669, Elsevier, St. Louis, MO 2012.

Test Classification and CPT Coding

84560

Additional Information

For BJH Laboratory Use Only

Analyte Stability:

See Analyte Stability Chart in Special Instructions.

Specimen must be kept refrigerated during collection and before delivery to limit bacterial growth.

Laboratory Processing Instructions:

Test performed in BJH Core Lab. Mix urine well. Record volume, period, and pH on request form. Using 13x100 test tubes, prepare a 7-mL aliquot. Check the pH. If pH is <9, add 6 N NaOH in 1 drop increments until the pH is between 9 and 10. Do not over adjust. Heat for 10 minutes at 56° C. Deliver to the automated line for centrifugation and delivery to Cobas 8000 for analysis. Completed specimen is stored refrigerated for 5 days.

Specimen Transport Temperature

Ambient

LOINC Code Information

Name LOINC Code
Urate in urine 3086-6