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HelpTest Code LAB1850 Beta-2 Glycoprotein 1 Antibodies, IgG
Useful For
Evaluating patients with suspected antiphospholipid syndrome (APS). Beta-2-GPI autoantibodies are associated with increased risk of venous and arterial thrombosis, miscarriage, and thrombocytopenia. Beta-2 GPI autoantibodies are found only in patients with autoimmune diseases, while cardiolipin autoantibodies can be transiently found in infectious diseases.
Methodology
Enzyme linked fluorescent immunoasay (EliA)
Performing Laboratory
Bozeman Outpatient Services at North 19th
Specimen Requirements
Specimen Type: Serum
Container/Tube: Red top or gold top
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Collection Instructions: Allow specimen to clot. Centrifuge and separate serum from cells within 2 hours of collection.
Specimen Rejection:
1. Grossly hemolyzed or lipemic samples will be rejected.
2. Repeatedly freezing and thawing samples can cause analyte deterioration. Thaw only once.
Specimen Transport Temperature
Ambient <8 hours/Refrigerated >8 hours
Specimen Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Ambient | 8 hours |
| Refrigerated | 14 days | |
| Frozen | 30 days |
Reference Values
Negative
<7.0 U/mL (negative)
7.0-10.0 U/mL (equivocal)
>10.0 U/mL (positive)
Day(s) Test Set Up
Monday, Wednesday, Friday
Turnaround Time: Same day as performed
Test Classification and CPT Coding
86146