URIC ACID, URINE

Mnemonic

URICU

Synonym

Purines

Specimen Collection Requirements

Collect

Preferred: 24 hour urine, one sterile acid-free container Also acceptable: Random urine.

Handling

Collect urine over 24 hours. Refrigerate during collection. Mix urine well in one container before removing aliquot. Record collection time interval and total volume on transport tube and test request form.

Preferred Volume

0.5 mL

Minimum Volume

0.3 mL

Transport

Refrigerated (2-8°C)

Rejection Criteria

Grossly hemolyzed specimens

Stability

UNPRESERVED SPECIMENS: Ambient (15-25°C): 3 days (provided that there is no bacterial growth to destroy the uric acid); Refrigerated (2-8°C): 7 days; Frozen (at or below -20°C): 6 months

Testing Information

Performed

7 days/week

Method

Colorimetry (Uricase)

Referral Lab

Samaritan Health Services Laboratories

Reference Values

Reference Values

Timed Urines: 250-750 mg/day.

CPT Codes

84560

Last Updated: Thursday, January 5, 2017 03:42:33 AM