Uric Acid, 24 Hour Urine
Use
Urine uric acid measurement may supplement serum uric acid testing in identifying alterations in uric acid production or excretion, including conditions such as gout, leukemia, renal disease, and urolithiasis. It may also aid in the treatment of asymptomatic hyperuricemia and investigation of kidney stone formation.
Special Instructions
Not provided.
Limitations
Not provided.
New York Approved
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
LOINC Codes
- 3167-4 - Specimen vol 24h Ur
- 3087-4 - Urate 24h Ur-mRate
- 13820-6 - Urate/Creat 24h Ur
- 2162-6 - Creat 24h Ur-mRate
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
10 mL aliquot from a well‑mixed, 24‑hour urine collection
Minimum Volume
2 mL
Container
no preservative, ure aliquot cup
Collection Instructions
Collect a well‑mixed 24‑hour urine. Do not acidify. Last sample collected should be first morning void at same time as previous morning. Specify total volume and duration on container and requisition.
Causes for Rejection
Acid preserved urine
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 13 days |
| Refrigerated | 13 days |
| Frozen | 28 days |
Other tests from different labs that may be relevant