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Test Code LAB4214 URIC ACID, 24 HOUR URINE

Important Note

- Add a 10g Boric Acid tablets (Four 2.5g tablets) prior to collection. 

- Adjust pH to >8.0  using 6 Normal Sodium Hydroxide (6 N NaOH)  prior to analysis. 

- Record collection time and total volume.

Specimen Type

24-hour urine collection preserved with Boric Acid. Add 10g Boric Acid tablets prior to collection. After collection is complete adjust pH to >8.0  using 6 Normal Sodium Hydroxide (6 N NaOH)  prior to analysis. 

Collection Instructions

Collect a 24-hour urine in a plastic urine container. Specimen must remain refrigerated or on ice during collection. Deliver to the laboratory on ice.

Specimen Volume

3 to 6 mL aliquot of 24 hour Urine preserved with Boric Acid

Turnaround Time

STAT: 1 hour

Routine: 4 hours

Test Schedule

Daily

Method

Colorimetric

Reference Ranges

Uric Acid, 24-hr urine, mg/24 Hrs
250.0 - 750.0

Test Components

Collection Period, h

Volume, mL

Uric Acid, Urine, mg/24h.

CPT Codes

84560

Specimen Stability

4 days at Room Temperature . Do not refrigerate.

Specimen Rejection

Specimens contaminated with fecal material will be rejected.

 

Misslabeled or unlabeled containter. Incomplete 24 hour urine collection.  See 24 hour urine collection instructions for proper collection procedure. Any urine contaminated with fecal material.