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 Atorvastatin. Which of the following instructions should be included?

Correct answer: B

Rationale: The correct answer is to avoid drinking grapefruit juice when taking Atorvastatin. Grapefruit juice can interfere with the metabolism of Atorvastatin, leading to increased blood levels of the medication, which can result in a higher risk of adverse effects, such as muscle pain and liver damage. It is important for the client to follow this instruction to ensure the safe and effective use of Atorvastatin. Choices A, C, and D are incorrect. While taking Atorvastatin with food may be recommended for some individuals to reduce stomach upset, it is not a crucial instruction. The timing of Atorvastatin administration can vary depending on individual needs and is not universally fixed to the morning. Increasing potassium-rich foods is not directly related to Atorvastatin use and is not a standard precautionary measure associated with this medication.

3. A nurse is caring for a client in an outpatient facility who has been taking Acarbose for type 2 Diabetes Mellitus. Which of the following laboratory tests should the nurse plan to monitor?

Correct answer: D

Rationale: The correct answer is D, Liver function test. Acarbose can cause liver toxicity when taken long-term. Monitoring liver function tests periodically is essential to assess for any potential liver damage. Choices A, B, and C are incorrect because Acarbose does not directly impact white blood cell count, serum potassium levels, or platelet count.

4. When administering Amitriptyline to a client experiencing cancer pain, for which of the following adverse effects should the nurse monitor?

Correct answer: D

Rationale: Corrected Question: When administering Amitriptyline to a client experiencing cancer pain, for which of the following adverse effects should the nurse monitor? Amitriptyline is known to cause orthostatic hypotension, a sudden drop in blood pressure when moving from lying down or sitting to a standing position. Monitoring for orthostatic hypotension is crucial to prevent falls and related injuries. Educating the client about moving slowly and changing positions gradually can help mitigate this adverse effect. Choices A, B, and C are incorrect because decreased appetite, explosive diarrhea, and decreased pulse rate are not commonly associated with Amitriptyline use. Therefore, the correct answer is D.

5. Which drug class has been found to decrease mortality if given within 8 hours of an MI due to a decrease in cardiac workload?

Correct answer: B

Rationale: Beta-adrenergic blockers have been shown to decrease mortality when administered within 8 hours of a myocardial infarction (MI). They do so by reducing cardiac workload, which helps improve outcomes post-MI. These drugs work by blocking the effects of adrenaline on the heart, leading to decreased heart rate, blood pressure, and myocardial oxygen demand, thereby protecting the heart muscle from further damage. This makes them a crucial part of the treatment regimen for acute coronary syndromes like MI.

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