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).

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details

Days Test Performed

Mon-Fri

Analytic Time

8 hours

Soft Order Code

B2GP1

MiChart Code

Beta-2 Glycoprotein Antibodies

Synonyms

Laboratory

Chemical Pathology

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Specimen Requirements

Offsite Collection Instructions

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

Container

Normal Volume

0.5 mL serum

Minimum Volume

0.3 mL serum

Additional Information

Test includes IgG, IgM, and IgA autoantibodies.

Billing Information

Fee Codes

CPT Code

86146 x3

LOINC

56152-2

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