Medical Quiz App

1 of 5

Which of the following is the most accurate statement regarding the mechanism of action of warfarin?

1: Warfarin binds and directly inhibits factor Xa

2: Warfarin directly inhibits the action of factors II, VII, IX, and X

3: Warfarin directly inhibits the action of thrombin

4: Warfarin inhibits epoxide reductase to decrease the amount of available vitamin K