Beta-2-Glycoprotein I Antibody (IgA)
Use
Beta‑2‑Glycoprotein I (also known as apolipoprotein H) is a key antigen in antiphospholipid antibody syndrome (APS), and IgA‑class antibodies may be more specific compared to cardiolipin antibody, which can cross‑react in infectious diseases such as syphilis.
Special Instructions
Not provided.
Limitations
Not provided.
New York Approved
Methodology
Immunoassay (Other)
Biomarkers
Beta‑2‑Glycoprotein I (IgA) Antibody
Protein
Result Turnaround Time
2-3 days
Related Documents
For more information, please review the documents below
Specimen
Plasma
Volume
1.0 mL
Minimum Volume
0.5 mL
Container
Sodium Citrate (Light Blue Top) Tube
Collection Instructions
Collect in sodium citrate light‑blue top tube; invert 5 times; centrifuge 15 min at ~1500 x g within 60 min; remove plasma avoiding buffy coat; repeat centrifugation to produce platelet‑poor plasma (<10,000/µL); transfer to plastic vial.
Storage Instructions
Store specimen at 2 °C to 8 °C after collection and ship same day.
Causes for Rejection
Improper labeling; samples not stored properly; samples older than stability limits; gross hemolysis; gross lipemia
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 5 days |
| Refrigerated | 14 days |
| Frozen | 30 days |
Other tests from different labs that may be relevant