ARUP's Laboratory Test Directory

Beta-2 Glycoprotein 1 Antibody, IgA : 0050324

Mnemonic: B2GPI A

Ordering Recommendation: Preferred second-line testing for patients considered seronegative antiphospholipid syndrome (APS). Order incrementally or concurrently with other non-criteria antiphospholipid antibody tests.
Methodology: Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed: Sun-Sat
Reported: 1-2 days
Specimen Required: Collect: Serum separator tube.

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Plasma or other body fluids. Contaminated, hemolyzed, grossly icteric, or severely lipemic specimens.

Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
0-20 SAU
CPT Code(s): 86146
Cross References: Anti-B2-Glycoprotein 1 (Beta-2 Glycoprotein 1 Antibody, IgA) , Anti-B2-Glycoprotein I (Beta-2 Glycoprotein 1 Antibody, IgA) , Anti-B2-GP 1 (Beta-2 Glycoprotein 1 Antibody, IgA) , Anti-B2-GP I (Beta-2 Glycoprotein 1 Antibody, IgA) , Anti-B2-GP1 (Beta-2 Glycoprotein 1 Antibody, IgA) , Anti-B2-GPI (Beta-2 Glycoprotein 1 Antibody, IgA) , Anti-Beta-2-Glycoprotein I (Beta-2 Glycoprotein 1 Antibody, IgA) , Apolipoprotein H (Beta-2 Glycoprotein 1 Antibody, IgA)