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HelpTest Code AAU Amino Acid, Urine (quantitative)
Additional Codes
| Epic Ordering Code | LAB355 |
| NBS code | LBC00061 |
| Service code | 31926 |
Specimen Requirements
Submit the following:
| Container: |
| Plain Sterile Container |
Send specimen on ice and send to the laboratory immediately.
Indicate date of birth of patient & state whether premature or full term.
Processing Requirements
Specimen Type: Random urine
Volume: 3.0 mL
Storage/transport requirements: Frozen
Specimen Stability
| Specimen Type | Random urine |
|---|---|
| Ambient | Not available |
| Refrigerate | Not available |
| Frozen | 2 weeks |
Methodology
Ion-exchange Chromatography
Days and Times Performed
Monday through Friday, TAT 5 - 14 days
Reference Interval
The age-related reference interval will be provided on the report.
Useful For
Evaluating patients with possible inborn errors of metabolism.
Update
Last updated 04/09/2026
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