The thrombophilia panel includes testing for the following factors at our center: homocysteine, prothrombin time (PT), international normalized ratio (INR), partial thromboplastin time (PTT), dilute russels viper venom time (DRVVT), thrombin time (TT), protein C, protein S, antithrombin III, prothrombin G20210A mutation, platelet count, factor V gene mutation, factor VIII, factor IX, factor XI, anticardiolipin (ACL) antibody, beta-2 glycoprotein antibodies, and LA [12]. The gene discussed is PROS1; the disease is thrombophilia.