Antithrombotic drugs

Which of the following is the first step in the process of blood clotting?

• Activation of platelets

• Formation of fibrin mesh

• Conversion of fibrinogen to fibrin

• Activation of clotting factors

Which of the following substances is a natural anticoagulant that helps prevent blood clots from forming in the circulatory system?

• Prothrombin

• Fibrinogen

• Heparin

• Thromboxane A2

What is the main function of thrombin in blood clotting?

• To activate platelets

• To break down fibrin

• To convert fibrinogen to fibrin

• To promote vasoconstriction

Which of the following substances is responsible for dissolving blood clots once they are no longer needed?

• Thrombin

• Fibrinogen

• Plasmin

• von Willebrand factor

Which one is a Vit K independent clotting factor?

• Factor II

• Factor IX

• Factor VII

• Factor V

Which antiplatelet drug is often used in combination with aspirin to prevent blood clots in patients with acute coronary syndrome?

• Clopidogrel

• Dipyridamole

• Prasugrel

• Ticagrelor

Which antiplatelet drug is contraindicated in patients with a history of bleeding disorders?

• Aspirin

• Dipyridamole

• Abciximab

• All of the above

Which antiplatelet drug irreversibly blocks the ADP receptor on platelets?

• Aspirin

• Clopidogrel

• Ticagrelor

• Cangrelor

Which antiplatelet drug irreversibly inhibits cyclooxygenase (COX) and reduces the production of thromboxane A2?

• Ticagrelor

• Prasugrel

• Clopidogrel

• Aspirin

Which of the following anticoagulant drugs is administered subcutaneously?

• Heparin

• Warfarin

• Apixaban

• Dabigatran