Fig. 1. Method of rotational thromboelastometry. The obtained parameters were time to clot initiation (CT), time to clot formation (CFT), α angle for clot growth kinetics (initial rate of fibrin polymerization), and maximum amplitude representing the viscoelastic strength of clot at 10 min (MA10) and 20 min (MA20). CT, the latency time from adding the start reagent to blood until the clot starts to form; CFT, duration measured from r time to the point where the amplitude of the tracing measures reached 20 mm; α angle, the angle of tangent between 2 and the curve while CFT is the time from CT until a clot firmness of 20 mm point has been reached.