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HelpTest Code OROU Orotic Acid, urine
Additional Codes
| Epic Ordering Code | LAB3040069 |
| NBS code | LBC12397 |
| Service code | 31928 |
Specimen Requirements
Submit the following:
| Container: |
| Plain Sterile Container |
Place container on ice and send to laboratory immediately.
Processing Requirements
Specimen Type: Random urine
Volume: 10 mL
Storage/transport requirements: Frozen
Specimen Stability
| Specimen Type | Random urine |
|---|---|
| Ambient | Not available |
| Refrigerate | Not available |
| Frozen | 1 month |
Methodology
Gas Chromatography Mass Spectrometry (GC-MS)
Days and Times Performed
Monday through Friday, TAT 5 - 14 days
Reference Interval
Reference interval will be provided on the report
Useful For
Evaluation of the differential diagnosis of hyperammonemia and hereditary orotic aciduria.
Update
Last updated 04/08/2026
Referring / Testing Laboratory
National University Hospital
Client Services, 67724912
Testing Laboratory
Biochemical Genetics Laboratory
Basement 1, Children’s Tower
KK Women’s and Children’s Hospital Pte Ltd
100, Bukit Timah Road
Singapore 229899
Tel: 63948728