QuestionSBA
QuestionChoice
Warfarin is a blood thinning medication that blocks the function of the vitamin K epoxide reductase complex in the liver, leading to less vitamin K that serves as a cofactor for gamma carboxylation of vitamin K-dependent coagulation factors
10006171
a
Blocks the function of the vitamin K epoxide reductase complex in the liver
QuestionChoice
This is the mechanism of action of calcium channel blockers such as amlodipine
10006175
e
Dihydropyridine calcium antagonist
QuestionChoice
This is the mechanism of action of aspirin
10006173
c
Irreversibly inhibits cyclooxygenase (COX) 1 and COX-2
QuestionChoice
This is the mechanism of action of heparin
10006172
b
Binds reversibly to ATIII and leads to inactivation of factors IIa, Xa, IX, XI, XII and plasmin
QuestionChoice
This is the mechanism of action of direct oral anticoagulants e.g. rivaroxaban
10006174
d
Inhibit prothrombinase complex-bound and clot-associated factor Xa, leading to reduced thrombin
Concept
Chapter
2693
4115
Warfarin
Topic
203
Pharmacology of Haemostasis and Thrombosis
13781
What is the mechanism of action of warfarin?
a