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HelpTest Code AMAC Amino Acid, quantitative, CSF
Additional Codes
| Epic Ordering Code | LAB3041041 |
| NBS code | LBC00061 |
| Service code | 31926 |
Specimen Requirements
Submit the following:
| Container: |
| Plain Sterile Container |
Collection Instructions:
1. Submit minimum 0.5 mL of CSF in sterile container on ice to laboratory immediately. Blood stained CSF specimen is unsuitable.
2. To send with a paired plasma sample (collected within an hour) as interpretation, particularly in the case of nonketotic hyperglycinaemia (NKHG), requires comparison with plasma concentrations.
Processing Requirements
Specimen Type: CSF
Volume: 1.0 mL
Storage/transport requirements: Frozen
Specimen Stability
| Specimen Type | CSF |
|---|---|
| Ambient | Not available |
| Refrigerate | Not available |
| Frozen | 2 months |
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 amino acid metabolism, in particular nonketotic hyperglycinemia and serine biosynthesis defects, especially when used in conjunction with concomitantly drawn plasma specimens.
Update
Last updated 01/09/2026
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
63948728