Cardio Lecture 4
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Questions and Answers

Which of the following medications is a direct, selective Factor Xa inhibitor?

  • Rivaroxaban (correct)
  • Apixaban
  • Warfarin
  • Dabigatran

What is the half-life of Factor IX, a vitamin K-dependent protein?

  • 36 hours
  • 24 hours (correct)
  • 6 hours
  • 60 hours

Which of the following is NOT a consideration for warfarin dosing?

  • Weight
  • Age
  • Ethnic background
  • Diet (correct)

What is the initial dosing range for warfarin in healthy outpatients?

<p>5 mg (B)</p> Signup and view all the answers

Which of the following is a primary objective of this presentation?

<p>Understanding the various indications for anticoagulation (B)</p> Signup and view all the answers

What is the purpose of the case discussion in this presentation?

<p>To apply the knowledge gained from the presentation to a real-life scenario (D)</p> Signup and view all the answers

Which of the following is a dosing consideration for direct acting oral anticoagulants (DOACs)?

<p>General dosing considerations for dabigatran, rivaroxaban, and apixaban (C)</p> Signup and view all the answers

Which type of heart valve requires lifelong warfarin?

<p>Mechanical valve (B)</p> Signup and view all the answers

What is the recommended INR range for aortic mechanical valves without risk factors?

<p>2.0 to 3.0 (B)</p> Signup and view all the answers

Which direct acting oral anticoagulant (DOAC) should never be used for anticoagulation of mechanical heart valves?

<p>Dabigatran (D)</p> Signup and view all the answers

What is the approximate half-life of warfarin?

<p>10-14 days (D)</p> Signup and view all the answers

Which of the following is a key factor that affects the INR and dosage requirements of warfarin?

<p>Patient's weight (B)</p> Signup and view all the answers

What is the recommended dose of rivaroxaban for adult patients during the initial treatment of acute VTE?

<p>15 mg BID (A)</p> Signup and view all the answers

Which of the following is NOT a special consideration for DOACs?

<p>Laboratory monitoring (A)</p> Signup and view all the answers

What is the recommended dose of apixaban for adult patients during the first 7 days of VTE treatment?

<p>5 mg BID (C)</p> Signup and view all the answers

According to the text, what is the recommended dose increase for Warfarin therapy in CASE 2?

<p>8% (C)</p> Signup and view all the answers

Based on the information provided, what is the INR range goal for the patient in CASE 2?

<p>2.0-3.0 (A)</p> Signup and view all the answers

Which of the following drugs can increase the catabolism of clotting factors?

<p>Levothyroxine (D)</p> Signup and view all the answers

Which of the following antibiotics may increase the INR?

<p>Moxifloxacin (C)</p> Signup and view all the answers

Which of the following is NOT a risk factor for venous thromboembolism (VTE)?

<p>Minor trauma (A)</p> Signup and view all the answers

Which of the following is the preferred treatment for venous thromboembolism (VTE)?

<p>Rivaroxaban or apixaban alone (B)</p> Signup and view all the answers

Which of the following is a risk factor for stroke in patients with atrial fibrillation/flutter?

<p>Hypertension (B)</p> Signup and view all the answers

What is the recommended anticoagulation therapy for stroke prevention in patients with atrial fibrillation/flutter?

<p>Warfarin (TTR &gt;70% in range 2.0-3.0) (B)</p> Signup and view all the answers

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