Beta-2 Glycoprotein 1 Antibody, IgA
Also known as: B2GPI A
Use
This test is used as a preferred second-line test when seronegative antiphospholipid syndrome (APS) is strongly suspected. It is ordered incrementally or concurrently with other noncriteria antiphospholipid antibody tests. It may also be useful in estimating the risk of thrombosis and/or pregnancy-related morbidity in patients with systemic lupus erythematosus (SLE).
Special Instructions
Separate serum from cells as soon as possible or within 2 hours of collection and transfer to an ARUP Standard Transport Tube.
Limitations
Plasma or other body fluids are unacceptable. Contaminated, hemolyzed, grossly icteric, or severely lipemic specimens are also unacceptable for analysis. Multiple freeze/thaw cycles should be avoided as they may affect the stability of the specimen.
FDA ApprovedNew York Approved
Methodology
Immunoassay (ELISA)
Biomarkers
LOINC Codes
- 21108-6
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.3 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Separate serum from cells ASAP or within 2 hours of collection. Transfer to an ARUP Standard Transport Tube.
Causes for Rejection
Plasma or other body fluids. Contaminated, hemolyzed, grossly icteric, or severely lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 2 weeks |
| Frozen | 1 year (avoid repeated freeze/thaw cycles) |
Other tests from different labs that may be relevant