Test Overview
Test Methodology

Multiplex Flow Immunoassay

Test Usage

Beta-2-GPI autoantibodies are found in patients with antiphospholipid syndrome (APS) and are associated with increased risk of venous and arterial thrombosis and thrombocytopenia. Beta-2-GPI autoantibodies are found only in patients with autoimmune diseases, while cardiolipin autoantibodies can be transiently found in infectious diseases.

Reference Range *

B2GP1 IgG: <20 U/mL (Negative); B2GP1 IgM: <20 U/mL (Negative); B2GP1 IgA: <20 U/mL (Negative).

Test Details
Days Set Up
Mon-Fri
Analytic Time

8 hours

Soft Order Code
B2GP1
MiChart Code
Beta-2 Glycoprotein Antibodies
Synonyms
  • BETA-2 GLYCOPROTEIN 1-IgG
  • BETA-2 GLYCOPROTEIN 1-IgM
  • BETA-2 GLYCOPROTEIN 1-IgA
  • B2GP1
  • BETA-2 GLYCOPROTEIN 1
  • Antiphospholipid Antibody (Beta 2 Glycoprotein)
  • Phospholipid Antibody (Beta 2 Glycoprotein)
Laboratory
Chemical Pathology
Section
Immunopathology
Specimen Requirements
Collection Instructions

Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Alternate Specimen
Red top tube.
Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.3 mL serum
Additional Information

Test includes IgG, IgM, and IgA autoantibodies.

Billing
CPT Code
86146 x3
Fee Code
32173, 32174, 32096
LOINC
56152-2
NY State Approved
No