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HelpTest Code ACAM Anti-Cardiolipin Antibody, IgM
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII) / Red Top
Volume: 5.0 mL
Minimum Volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 8 hours |
| Refrigerate | 2 days (preferred) |
| Frozen | 14 days |
Specimen Condition
| Haemolysis | Gross reject |
|---|---|
| Icterus | Not applicable |
| Lipaemia | Gross reject |
| Others | Not applicable |
Methodology
Enzyme-Linked Immunosorbent Assay (ELISA)
Days and Times Performed
Thursday 9am, TAT 12 days
Reference Interval
| Negative | < 12.5 MPL |
|---|---|
| Intermediate | 12.5 – 20 MPL |
| Positive | > 20 MPL |
Testing Laboratory
National University Hospital
Haematology, 67725320
Useful For
Investigation of acquired thrombotic tendency and in autoimmune disorders,
e.g. Antiphospholipid syndrome, systemic lupus erythematosus.
Service Code
12161
Update
Last updated 14/01/2026
Alias
ACA IgM
Anticardiolipin Antibodies
Antiphopholipid Antibodies
Laboratory Code
LAB1736
LOINC Code Information
3182-3