what is the antidote for warfarin
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Nursing Elites

ATI RN

ATI Pharmacology Proctored Exam 2024

1. What is the antidote for Warfarin?

Correct answer: C

Rationale: Vitamin K is the antidote for Warfarin toxicity as it helps reverse the anticoagulant effects of Warfarin. Warfarin works by inhibiting vitamin K-dependent clotting factors, and administering vitamin K can replenish these factors, thereby counteracting the anticoagulant effects of Warfarin. Vitamin D, Vitamin C, and Vitamin B6 do not have the specific mechanism to counteract the anticoagulant effects of Warfarin, making them incorrect choices.

2. A client has a new prescription for Nevirapine, an NNRTI. Which of the following statements should the nurse include in teaching the client?

Correct answer: B

Rationale: The correct statement that the nurse should include in teaching the client about Nevirapine, an NNRTI, is to take the medication with food to improve gastrointestinal tolerance and prevent nausea. While absorption is not significantly affected by food, taking it with meals can help reduce adverse gastrointestinal effects. Choice A is incorrect because Nevirapine should not be taken on an empty stomach. Choice C is generally true for most medications but is not specific to Nevirapine. Choice D is a good practice for medication adherence but is not specific to the administration requirements of Nevirapine.

3. Which of the following is classified as a class IA Sodium Channel blocker?

Correct answer: A

Rationale: Quinidine is classified as a class IA sodium channel blocker. Class IA antiarrhythmics, like quinidine, work by blocking sodium channels and delaying repolarization. Propafenone, mentioned in the original rationale, is actually a class IC antiarrhythmic agent, not a class IA sodium channel blocker.

4. A client is prescribed Propranolol for a dysrhythmia. Which of the following actions should the nurse plan to take?

Correct answer: C

Rationale: The correct action the nurse should plan to take when administering Propranolol is to assist the client when sitting up or standing after taking the medication. Propranolol can lead to orthostatic hypotension, causing dizziness upon sudden position changes. It is essential to help the client with position changes to prevent falls or injury. Holding Propranolol if the client's apical pulse is greater than 100/min (Choice A) is incorrect because Propranolol is often used to manage dysrhythmias and slowing down the heart rate. Administering Propranolol to decrease the client's blood pressure (Choice B) is not the primary indication for using this medication. Monitoring the client for hypokalemia due to the risk of Propranolol toxicity (Choice D) is not a direct effect of Propranolol; rather, it is more related to other medications like diuretics.

5. A client with chronic renal disease is receiving therapy with epoetin alfa. Which of the following laboratory results should the nurse review for an indication of a therapeutic effect of the medication?

Correct answer: C

Rationale: The correct answer is C: The hematocrit (Hct). Monitoring the hematocrit is essential to assess the therapeutic effect of epoetin alfa because this medication stimulates red blood cell production in clients with chronic renal disease. The leukocyte count (choice A) and platelet count (choice B) are not directly affected by epoetin alfa therapy. The erythrocyte sedimentation rate (ESR) (choice D) is a non-specific marker of inflammation and is not used to monitor the therapeutic effect of epoetin alfa.

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