Which of the following is NOT a DOAC option?

Study for the Anticoagulation and ACS Exam with tailored flashcards and multiple choice questions, each featuring hints and detailed explanations. Prepare effectively and ensure success on your exam with confidence!

Multiple Choice

Which of the following is NOT a DOAC option?

Explanation:
This question centers on what qualifies as a direct oral anticoagulant (DOAC). DOACs act directly on a specific coagulation step: dabigatran inhibits thrombin, while apixaban and rivaroxaban inhibit factor Xa. Warfarin, on the other hand, is a vitamin K antagonist that blocks the synthesis of multiple clotting factors (II, VII, IX, X) and proteins C and S, and it requires INR monitoring. Because of this mechanism and monitoring needs, warfarin is not a DOAC. Therefore, the non-DOAC among the options is warfarin.

This question centers on what qualifies as a direct oral anticoagulant (DOAC). DOACs act directly on a specific coagulation step: dabigatran inhibits thrombin, while apixaban and rivaroxaban inhibit factor Xa. Warfarin, on the other hand, is a vitamin K antagonist that blocks the synthesis of multiple clotting factors (II, VII, IX, X) and proteins C and S, and it requires INR monitoring. Because of this mechanism and monitoring needs, warfarin is not a DOAC. Therefore, the non-DOAC among the options is warfarin.

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