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HelpTest Code 24UA Uric Acid, urine, 24 hr
Additional Codes
| Epic Ordering Code | LAB841 |
| NBS code | LBC05056 |
| Service code | 31403 |
Specimen Requirements
Submit the following:
| Container: |
| 24 Hr Urine Container |
Preservative types accepted: No preservative, Thymol
Submit cumulative 24-hour urine collection, or a 20 mL aliquot from the completed collection. For aliquots, record the total 24-hour urine volume on the bottle.
NUH Outreach: Submit a 20 mL aliquot from the completed 24-hour collection. Record the total 24-hour urine volume on the aliquot bottle.
Processing Requirements
Centrifuge sample before analysis.
Specimen type: 24hr Urine
Specimen Stability
| Specimen Type | 24 hr urine |
|---|---|
| Ambient | 2 days |
| Refrigerate | 2 days |
| Frozen | Not available |
Specimen Condition
| Haemolysis | Not applicable |
|---|---|
| Icterus | Not applicable |
| Lipaemia | Not applicable |
| Others | Not applicable |
Methodology
Enzymatic Assay
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
| Purine-free diet | |
|---|---|
| Male | < 2.5 mmol/day |
| Female | < 2.5 mmol/day |
| Low purine diet | |
|---|---|
| Male | < 2.8 mmol/day |
| Female | < 2.4 mmol/day |
| High purine diet | < 5.9 mmol/day |
|---|---|
| Average diet | 1.5 – 4.4 mmol/day |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Evaluation of uric acid metabolism.
Investigation of renal calculi.
Update
Last updated 31/07/2026
LOINC Code Information
| Urine volume, total | 3167-4 |
|---|---|
| Uric acid, urine | 14934-4 |
| Uric acid, urine, 24 hr | 14935-1 |
Alias
24UA