what does it mean when a medication has a half life
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Nursing Elites

ATI RN

ATI Proctored Pharmacology 2023

1. What does it mean when a medication has a half-life?

Correct answer: B

Rationale: When a medication has a half-life, it refers to the time it takes for half of the dose to be eliminated from the bloodstream. This parameter is crucial in understanding the duration of action and dosing intervals for medications in clinical practice. Choice A is incorrect as the half-life is not about how long the medication lasts but about elimination from the body. Choice C is incorrect because the half-life is not about the peak effectiveness of the medicine. Choice D is incorrect as it does not accurately define the concept of half-life.

2. A client has a new prescription for Ranitidine to treat peptic ulcer disease. Which of the following instructions should the nurse include?

Correct answer: B

Rationale: The correct instruction that the nurse should include for a client prescribed Ranitidine to treat peptic ulcer disease is to avoid smoking while taking the medication. Smoking can interfere with the effectiveness of ranitidine and worsen ulcer symptoms. Therefore, it is crucial for clients to abstain from smoking to ensure optimal therapeutic outcomes. Choices A, C, and D are incorrect. Taking Ranitidine with or without food does not significantly affect its effectiveness, there is no specific need to increase intake of dairy products, and expecting a yellow tinge to the skin is not a common side effect associated with Ranitidine.

3. A client with increased liver enzymes is taking herbal supplements. Which of the following herbal supplements should the nurse report to the provider?

Correct answer: C

Rationale: The nurse should report kava to the provider because chronic use or high doses of kava can lead to liver damage, including severe liver failure. It is crucial for the nurse to be vigilant about any herbal supplement that could potentially worsen the client's liver condition.

4. A client has a new prescription for Amlodipine. Which of the following side effects should the client monitor for and report?

Correct answer: A

Rationale: Corrected Rationale: Amlodipine, a calcium channel blocker, can cause peripheral edema (swelling of the ankles) as a side effect. This occurs due to the dilation of blood vessels and increased fluid retention. It is important for the client to monitor for ankle swelling as it could indicate a potential adverse reaction to the medication. Reporting this side effect to the healthcare provider is crucial to ensure appropriate management and potential adjustment of the treatment plan.\n Choice B, increased urination, is not a common side effect of Amlodipine. Choice C, persistent cough, is more commonly associated with ACE inhibitors rather than calcium channel blockers like Amlodipine. Choice D, dark-colored urine, is not a typical side effect of Amlodipine and is not something the client should specifically monitor for and report while taking this medication.

5. Which of the following is considered a class IA Sodium Channel blocker?

Correct answer: D

Rationale: Procainamide is a class IA antiarrhythmic drug that acts as a sodium channel blocker by blocking fast sodium channels. Mexiletine is a class IB antiarrhythmic drug, not class IA. Amiodarone is a class III antiarrhythmic, and Quinidine is a class IA antiarrhythmic but not a sodium channel blocker.

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