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Test Code 8808 Uric Acid (Urine)

Purpose

Look for hyperuricosuria in patients with renal calculus formation. Identification of overexcretors re: risks of stone formation, identification of genetic defects, influence of overexcretion on therapy of gout. Uric acid nephrolithiasis occurs in primary gout or in secondary hyperuricemia (eg, malignant diseases).

 

Performing Laboratory

Copley Hospital

 

Methodology

Bichromatic Endpoint

 

Specimen Requirements

Specimen Type: Urine (24-Hour)

Container/Tube: Plastic Container
Specimen Volume: Entire 24-Hour Collection

 

Collection Instructions:

1. For 24 Hour Urines: Refrigerate during collection

     and follow instructions for “24 Hour Urine Collection”

     under “Specimen Collection and Handling” within the

     links menu on the left side of the screen.)

2. Label specimen with patient’s full name, date of birth,

    date & time of collection (Both Start & End Times for

    24-Hour Urines) and person collecting.

3. Refrigerate specimen during transport.

 

Reference Values

Normal: 250 - 750 mg / 24 Hours

 

Stability

Refrigerated: 3 Days

 

Day(s) Performed

Daily

Analytical Time: 1 Day

 

Aliases

Uric Acid

 

Test Classification & CPT Coding

81050 - Urine Timed Measurement

84560 - Uric Acid