ATI Pharmacology Final Exam 1 | Nurselytic

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ATI Pharmacology Final Exam 1 Questions

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Question 1 of 5

A client who has been anticoagulated with warfarin has been admitted for gastrointestinal bleeding. The history and physical examination indicates that the client may have taken too much warfarin. The nurse anticipates that the client will receive which antidote?

Correct Answer: D

Rationale: The correct answer is D: Vitamin K. Vitamin K is the antidote for warfarin overdose as it helps in the synthesis of clotting factors. Warfarin inhibits the synthesis of vitamin K-dependent clotting factors, leading to anticoagulation. Administering vitamin K helps replenish the depleted clotting factors, reversing the anticoagulant effects of warfarin.

Choice A: Vitamin E is an antioxidant and not the antidote for warfarin overdose.

Choice B: Protamine sulfate is the antidote for heparin, not warfarin.

Choice C: Potassium chloride is used to treat hypokalemia, not warfarin overdose.
In summary, the correct antidote for warfarin overdose is Vitamin K as it helps restore clotting factor synthesis, while the other choices do not address the specific mechanism of action of warfarin and are therefore incorrect.

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