Beta-2 Glycoprotein 1 Antibody, IgAPrint this page
Updated Test Information:
Beta-2 Glycoprotein 1 Antibody, IgA
Antiphospholipid Syndrome, APS
Beta-2 Glycoprotein 1, apolipoprotein H, is a cofactor in antiphospholipid antibody binding and is a critical antigen in the antiphospholipid syndrome (APS). These antibodies are important diagnostic markers for antiphospholipid syndrome (APS) due to their increased specificity and lower cross-reactivity. Assay results should be used in conjunction with clinical findings and other serological tests.
|Alternate Specimen Type||
Plasma (Li-Heparin, EDTA, or Citrate)
|Additional Processing Details||
Caution: Serum/plasma samples are not to be repeatedly frozen and thawed, since this can cause analyte deterioration. They are to be thawed only once.
Stored at 22˚C: 8 hrs
|Unacceptable Specimen Conditions||
Lipemic, hemolyzed or microbially contaminated samples.
Fluorescent enzyme immunoassay (FEIA)
Monday-Saturday, alternating days
|Minimum Sample Volume||
|Pediatric Min. Volume (if applicable)||
Negative < 7 U/mL