CD40LG and Arterial thrombosis: If a patient has tested positive for aCL IgG/IgM, anti-β2GPI I IgG/IgM, or LA or is receiving a therapeutic dose of LMWH and has tested positive for aCL IgG/IgM, anti-β2GPI IgG/IgM, or aPS/PT IgG/IgM and tests positive again after at least three months and has arterial thrombosis, the recommendation is as shown in Figure 2.