Questions and Answers
Which clotting factors does warfarin inhibit?
Factor II
What is the target International Normalized Ratio (INR) for outpatients on warfarin with atrial fibrillation (AF)?
2.0-3.0
What can excessive anticoagulation with warfarin cause?
Bleeding
Why is warfarin contraindicated in pregnancy?
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What is the purpose of a 'heparin bridge' at the start of warfarin therapy?
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Which vitamin K-dependent coagulation factors does warfarin inhibit?
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What is the main indication for using warfarin?
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Which test is used to monitor unfractionated heparin?
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