Beta-2-Glycoprotein 1 (also known as apolipoprotein H), is a cofactor in antiphospholipid antibody binding and is the cofactor in antiphospholipid antibody binding and is the The presence of high titer IgG/IgM beta-2-glycoprotein 1 antibody is one criteria for the diagnosis of antiphospholipid antibody syndrome.
Plasma (preferred): Centrifuge light blue-top tube 15 minutes at
approx. 1500 x g within 60 minutes of collection. Using a plastic
pipette, remove plasma, taking care to avoid the WBC/platelet buffy
layer and place into a plastic vial. Centrifuge a second time and
transfer platelet-poor plasma into a new plastic vial. Plasma must be
free of platelets (<10,000/mcL).
Serum: Centrifuge red-top tube 15 minutes at approx. 1500 x g within
24 hours of collection. Transfer serum into a plastic specimen vial.
Reported (Analytical Time)
The CPT codes provided are based on AMA guidelines and are for informational purposes only.
CPT coding is the sole responsibility of the billing party.
Please direct any questions regarding coding to the payer being billed.
Specimen Requirements: 2 mL (1 mL minimum) plasma collected in a 3.2% sodium citrate (light blue-top) tube Acceptable: Serum Reject Criteria: Gross hemolysis; grossly lipemic Transport Temperature: Room temperature Methodology: Immunoassay