QuestionSBA
QuestionChoice
This is the mechanism of action of warfarin, which acts as an anticoagulant by preventing the production of vitamin K-dependent factors (II, VII, IX and X).
10027770
e
Inhibits vitamin K epoxide reductase complex
QuestionChoice
This is the mechanism of action of clopidogrel and ticagrelor (thienopyridines).
10027769
d
P2Y12 receptor antagonist
QuestionChoice
This describes the mechanism of action of low molecular weight heparins (LMWH) such as dalteparin.
10027768
c
Forms a complex that inhibits factor Xa
QuestionChoice
Rivaroxaban is an example of a direct oral anticoagulant. These drugs have this mechanism of action on the blood clotting pathway.
10027766
a
Direct factor Xa inhibitor
QuestionChoice
This describes the anticoagulant mechanism of action of aspirin.
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b
Inhibits thromboxane A2
Concept
Chapter
2693
6001
Direct oral anticoagulants
Topic
195
Pharmacology
17951
A 54-year-old woman is seen after an episode of syncope. During this, an ECG is performed which shows absent P waves and an irregularly irregular rhythm. Atrial fibrillation is diagnosed and subsequently, rivaroxaban is started.

What is the mechanism of action of this drug?
a