12-29-2006, 08:10 AM
a 57 year old man has been hospitalized for 2 days for treatment of unstable angina pectoris. he is currently receiving intravenous heparin and undergoing evaluation for coronary artery bypass grafting. his bp is 160/90, and pulse is 88/minute and respirations are 16/minute. lab studies show
platelet count= 90,000/mm3
prothrombin time 12 seconds inr= 1.1
partial thromboplastin time= 35 seconds
which of the following is the most likely cause of findings?
a) excessive platelet destruction
b) factor VIII deficiency
c) inadequate platelet production
d) uncontrolled activation of coagulation and fibrinolytic cascades
e) vitamin k deficiency
platelet count= 90,000/mm3
prothrombin time 12 seconds inr= 1.1
partial thromboplastin time= 35 seconds
which of the following is the most likely cause of findings?
a) excessive platelet destruction
b) factor VIII deficiency
c) inadequate platelet production
d) uncontrolled activation of coagulation and fibrinolytic cascades
e) vitamin k deficiency