04-25-2006, 06:11 PM
A 65-year-old woman develops a proximal deep venous thrombosis 1 week after an elective total hip replacement. What is the mechanism of intravenous heparin in treating this disorder?
A ) Activation of plasmin
B ) Facilitation of inactivation of thrombin by antithrombin III
C ) Inhibition of activation of tissue plasminogen
D ) Inhibition of vitamin K-dependent coagulation factors
E ) Reversible inhibition of protein C and protein S activity
A ) Activation of plasmin
B ) Facilitation of inactivation of thrombin by antithrombin III
C ) Inhibition of activation of tissue plasminogen
D ) Inhibition of vitamin K-dependent coagulation factors
E ) Reversible inhibition of protein C and protein S activity