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Feb 1, 2018

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Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Chemistry

Uric Acid, Urine, 24 hr

Uric Acid, Urine, 24 hr (XUURIC) Chemistry Lab Test

Name: Uric Acid, Urine, 24 hr

Test Name: Uric Acid, Urine, 24 hr

Health Link Test Code: XUURIC

LIS Test Code: UURIC

CPT Code(s): 84560

Methodology: Uricase

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: 1 hour.

Specimen: 24 hour timed urine

Collection Container: 24 hour urine container

Collection Instructions:

Timed urine collection accepted. No preservative necessary. For timed urine collections, collect all urine in container provided. Add "Refrigerate" sticker to 24-hour container.

 

For 24-hour urine test the collection period must be within 22-26 hours. Collection period starts after first void of the period. It is very important to refrigerate specimen during and after the collection. Indicate the date and time collection started and date and time collection finished. If questions about collection process or container does not have instructions attached, call (608) 263-7060 for assistance.

 

Patient instructions available at www.uwhealth.org. Search for 24-hour urine collection or HF#4339. Timed urine collection accepted. No preservative necessary. For timed urine collections, collect all urine in container provided. Add "Refrigerate" sticker to 24-hour container.

Collection Volume: Entire collection

Stability Ambient:

4 days at pH >8

Stability Frozen:

not acceptable

Sample Analyzed: Urine aliquot

Testing Volume: 0.5 mL

Pediatric Testing Volume: 0.2 mL

Outreach Specimen Processing:

Mix urine well and note volume and period. Alkalinize with 10% w/v NaOH to pH of 9 or greater. Mix well and let stand for one hour. Recheck pH. Transport 50 mL alkalinized aliquot with coolant pack to the laboratory along with volume and period information.

Specimen Transport:

Transport entire specimen to the laboratory at close of collection. Transport with coolant pack if coming from clinic location.

Interpretation:

18 years and up: 250-750 mg/24 hr

 

Results calculated only for collections of 22-26 hrs. Random urine reported in mg/dL.

Interpretation Type: Reference Interval