Difficulty: Medium
Average Score: 67%
Simulated
A nurse is caring for a client who is on warfarin therapy for atrial fibrillation. The client's INR is 5.2. Which of the following medications should the nurse prepare to administer?
Correct answer
B
Rationale
The correct answer is B: Vitamin K. Warfarin is an anticoagulant that works by inhibiting Vitamin K-dependent clotting factors. When a patient's INR is high (like in this case with an INR of 5.2), it indicates that the blood is too thin and there is an increased risk of bleeding. Administering Vitamin K helps to reverse the effects of warfarin by replenishing Vitamin K levels and promoting the clotting process to bring the INR back to the therapeutic range.
Atropine (A) is a medication used to treat bradycardia, not related to warfarin therapy. Epinephrine (C) is a medication used for severe allergic reactions or cardiac arrest, not related to warfarin therapy. Protamine (D) is used to reverse the effects of heparin, not warfarin.
Atropine (A) is a medication used to treat bradycardia, not related to warfarin therapy. Epinephrine (C) is a medication used for severe allergic reactions or cardiac arrest, not related to warfarin therapy. Protamine (D) is used to reverse the effects of heparin, not warfarin.