A blood coagulation analyzer, such as the Thrombelastograph® (TEG®) blood coagulation analyzer is utilized to measure continuously in real time, the clotting process from the initial fibrin formation, through platelet-fibrin interaction and lysis to generate blood coagulation parameters. The measured blood coagulation parameters permit confirmation of the attainment of therapeutic level of GPIIb/IIIa receptor blockade; individualized dosing assessment to evaluate attainment of adequate GPIIb/IIIa receptor blockade; individualized dosing assessment required to reach adequate GPIIb/IIIa receptor blockade; illustration of the rate of diminishment of platelet inhibition or inhibition recovery after treatment with platelet-inhibition drugs; evaluation of the interaction effect of a combination of thrombolytic or any other agents or conditions effecting hemostasis and platelet-inhibiting agents on patient hemostasis.