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HelpTest Code AB2GP Beta-2 Glycoprotein 1 Antibodies, IgA, Serum
Specimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
CMH COLLECTION: 1 mL blood in a vacutainer Preferred: Red gel Acceptable: Red
Specimen Minimum Volume
0.4 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 21 days | |
| Frozen | 21 days |
Useful For
Evaluating patients with suspected antiphospholipid syndrome by identification of beta-2 glycoprotein 1 IgA antibodies
Evaluating patients at-risk for antiphospholipid syndrome (APS) who are negative for criteria APS tests
Estimating the risk of thrombosis and/or pregnancy-related morbidity in patients with systemic lupus erythematosus
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | OK |
| Heat-treated specimen | Reject |
Day(s) Performed
Monday, Wednesday, Friday
Report Available
4 to 6 daysReporting Name
Beta 2 GP1 Ab IgA, SReference Values
<15.0 SAU (negative)
15.0-39.9 SAU (weakly positive)
40.0-79.9 SAU (positive)
≥80.0 SAU (strongly positive)
Results are reported in standard IgA anti-beta 2 glycoprotein 1 units (SAU).
Reference values apply to all ages.
Method Name
Enzyme-Linked Immunosorbent Assay (ELISA)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86146