Mini-dose heparin has been shown to be useful in the prophylaxis of postoperative venous thrombosis. Mechanism(s) by which low-dose heparin is/are thought to protect against venous thrombosis include:
A.	Enhancement of antithrombin III activity
B.	A decrease in thrombin availability
C.	Inhibition of platelet aggregation and subsequent platelet release action
D.	A mild prolongation of activated partial thromboplastin time
Answer:A
Mini-dose heparin has been shown to be useful in the prophylaxis of postoperative venous thrombosis. Mechanism(s) by which low-dose heparin is/are thought to protect against venous thrombosis include:
A.	Enhancement of antithrombin III activity B.	A decrease in thrombin availability C.	Inhibition of platelet aggregation and subsequent platelet release action D.	A mild prolongation of activated partial thromboplastin time