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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Beta2-Glycoprotein IgM 36553
Test CodeBETA2GLYIGM
Alias/See Also
BETA2GLYIGM
CPT Codes
86146
Preferred Specimen
1 mL platelet-poor plasma collected in a 3.2% sodium citrate (light blue-top) tube
Minimum Volume
1
Other Acceptable Specimens
1 mL serum
Instructions
Draw RED top, remove serum and send in plastic screw cap vial at room temperature
Transport Container
RED
Transport Temperature
T
Specimen Stability
Room temperature: 5 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat; Report available: 3-4 days
Limitations
Factor VIII inhibitors may cause a false-positive lupus anticoagulation test. The temporary presence of antiphospholipid antibodies may accompany infections or certain drugs.
Reference Range
Value | Interpretation |
<20 U/mL | Antibody not detected |
≥20 U/mL | Antibody detected |
Clinical Significance
Beta-2-Glycoprotein 1, apolipoprotein H, is a cofactor in antiphospholipid antibody binding and is the critical antigen in the antiphospholipid antibody syndrome. Beta-2- Glycoprotein 1 antibody is more specific than cardiolipin antibody that may express reactivity in patients with syphilis and other infectious diseases.
Performing Laboratory
Quest Diagnostics Nichols Institute |
14225 Newbrook Drive |
Chantilly, VA 20153 |