| Uric Acid, Urine 24 hours  (URIC AC UR)
                             
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				| Synonyms: | none listed | 
				| Specimen: | Urine; 24 hour urine collection in a 24 hour container.  Do not use any preservative.
  Patient should be instructed how to collect a 24 hour urine. | 
				| Volume: | 10 mL urine aliquot (mix well) | 
				| Minimum Volume: | 1 mL urine | 
				| Collection: | Transport to the laobratory as soon as possible after collection is complete.  Urine aliquot may be submitted with documentation of 24 hour volume.
Maintain at room temperature or refrigerate at 2-8°C. | 
				| Rejection Criteria: | Use of preservative; pH less than 6; improper labeling. | 
				| Reference Range: | 250-750 mg/24 hours | 
				| Methodology: | Uricase | 
				| Test Use: | Detect hyperuricosuria in patients with renal calculi.  Evaluate uric acid metabolism in gout. | 
				| Additional Information: | Uric acid excretionm may be decreased in renal failure and hypertension | 
				| Testing Includes: | Specimen sent to LabCorp.  Labcorp test # 003418. | 
				| Testing Facility: | LabCorp |