Drug Interactions and Contraindications Quiz

Play an AI-generated podcast conversation about this lesson

What is the most commonly used drug in a patient with chronic atrial fibrillation to prevent thromboembolism?

Oral direct thrombin inhibitors

Heparin

Aspirin

Warfarin (correct)

Which drug is recommended for unstable angina?

Heparin (correct)

Warfarin

Antiplatelet drugs

Oral inhibitors of factor Xa

In which condition are anticoagulants contraindicated due to an increased risk of bleeding?

Arterial circulation disorders

Venous thrombosis

Peptic ulcers (correct)

Oral direct thrombin inhibitors

Which type of drugs are effective in arterial circulation where anticoagulants have little effect?

Antiplatelet drugs Signup and view all the answers

What is the primary mechanism of action of Cyclooxygenase-1 (COX-1) Inhibitors like Aspirin?

Reduce thromboxane A2 synthesis Signup and view all the answers

What is a common contraindication for anticoagulant use?

Tuberculosis Signup and view all the answers

What is a contraindication for the use of heparin and LMWH?

Chronic alcoholism Signup and view all the answers

Which factor does Low Molecular Weight Heparins (LMWH) interfere with primarily?

Factor Xa Signup and view all the answers

Which factor enhances the effect of warfarin?

Debility Signup and view all the answers

Which drug is an oral direct thrombin inhibitor?

Dabigatran Signup and view all the answers

Which factor is inhibited by oral inhibitors of factor Xa?

Prothrombin Signup and view all the answers

What is a potential benefit of using LMWH compared to Heparin?

Need for laboratory monitoring Signup and view all the answers

Which medication is commonly used for the prophylaxis of DVT and Pulmonary embolism?

LMWH Signup and view all the answers

In which condition is the use of warfarin contraindicated?

Gastrointestinal ulcer Signup and view all the answers

What is a contraindication for warfarin therapy?

Pregnancy Signup and view all the answers

What are anticoagulants mainly used for?

Venous thrombosis Signup and view all the answers

Which drug reduces the effect of warfarin?

Rifampicin Signup and view all the answers