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HelpTest Code ACAG Anti-Cardiolipin Antibody, IgG
Specimen Requirements
Specimen Type: Serum
Container/Tube: 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
| Gross Haemolysis | Reject |
|---|---|
| Icterus | OK |
| Gross Lipaemia | Reject |
| Others | Not applicable |
Methodology
Chemiluminescent Immunoassay (CLIA)
Days and Times Performed
Thursday 9am, TAT 12 days
Reference Interval
| Negative | ≤ 20 U/mL |
|---|---|
| Positive | > 20 U/mL |
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
12160
Update
Last updated 29/04/2026
Alias
ACA IgG
Anticardiolipin Antibodies
Antiphopholipid Antibodies
Laboratory Code
LAB1735
LOINC Code Information
3181-5