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HelpTest Code B2GM Anti-B2-Glycoprotein Polyclonal 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
| Gross Haemolysis | Reject |
|---|---|
| Icterus | OK |
| Gross Lipaemia | Reject |
| Others | Not applicable |
Methodology
Enzyme-Linked Immunosorbent Assay (ELISA)
Days and Times Performed
Tuesday 9am, TAT 12 days
Reference Interval
| Negative | 0 – 20 SMU |
|---|---|
| Positive | > 20 SMU |
Testing Laboratory
National University Hospital
Haematology, 67725320
Useful For
Provides quantitative in-vitro assay of antibodies against B2 Glycoprotein I (B2GPI). Aids in investigation of acquired thromobotic tendency and in autoimmune disorders, e.g. Antiphospholipid syndrome, systemic lupus erythematosus. The presence of B2GPI antibodies can be used to aid in diagnosis of antiphospholipid syndrome in conjuction with clinical findings and other laboratory tests.
Service Code
12164
Update
Last updated 14/01/2026
Alias
B2GM
Beta 2 GP1 Antibody IgM
Laboratory Code
LAB5037
LOINC Code Information
44449-7