CD40LG and blood coagulation disease: The following coagulation tests can be used to detect hereditary and acquired coagulation disorders: protein C, protein S, antithrombin III, APC (activated protein C) ratio, lipoprotein (a), prothrombin mutation G20210A, cardiolipin antibodies IgM/IgG, beta 2 glycoprotein antibodies IgM/IgG and lupus anticoagulants.