Comments:

If you are looking for the Antiphospholipid Syndrome, it is recommended 
that you collect both the Lupus Anticoagulant and the Cardiolipin 
Antibodies (IgG and IgM).  Please refer to the links below.

See also:
Cardiolipin Antibody, IgG and IgM, Serum
Lupus Anticoagulant, Citrated Whole Blood