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Test ID BLOD1333 Beta 2 Glycoprotein I IgM

Container Type

Sodium Citrate
Serum tube w/o gel

Serum tube w/ gel

Specimen Type/Requirements

Citrated plasma – preferred

Specimen Volume

1.0 mL

Minimum Volume

0.5 mL


Room Temperature: 5 days
Refrigerated: 14 days
Frozen: 30 days

Interfering Substances

Hemolysis: Yes
Lipemia: Yes

Reject Criteria: Gross hemolysis or gross lipemia

Transport Temperature

Room Temperature


See  Coagulation Testing and Platelet Poor Plasma Preparation to obtain platelet poor plasma within 60 minutes of collection.

Serum should be centrifuged within 24 hours of collection.

Performed Test Frequency

Monday - Saturday p.m.


Enzyme Immunoassay (EIA)



Performing Lab

Quest Chantilly

Additional Information

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 inpatients with autoimmune diseases, while cardiolipin autoantibodies can be transiently found in infectious diseases.

Factor VIII inhibitors may cause a false positive lupus anticoagulation test. The temporary presence of antiphospholipid antibodies may accompany infections or certain drugs.

Analytical Time

1 - 2 days

Interface Build Information

Result Code Result Code Description
4626 Beta-2-GPI IgM