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 is prescribed Amlodipine. Which of the following adverse effects should the nurse monitor?

Correct answer: B

Rationale: Corrected Rationale: Amlodipine, a calcium channel blocker, can lead to peripheral edema as an adverse effect. The nurse should assess the client for swelling in the lower extremities, a common manifestation of this side effect. Monitoring for peripheral edema is crucial to ensure early detection and appropriate management. Tachycardia (Choice A) is not a common adverse effect of Amlodipine. Hyperglycemia (Choice C) is not typically associated with Amlodipine use. Hypertension (Choice D) is the condition for which Amlodipine is prescribed to treat, not an adverse effect of the medication.

3. A client has a new prescription for Atorvastatin. Which of the following instructions should the nurse include?

Correct answer: B

Rationale: The correct answer is B: 'Avoid drinking grapefruit juice.' Grapefruit juice can increase the blood levels of Atorvastatin by inhibiting its metabolism in the body, leading to a higher risk of adverse effects, such as muscle pain and liver damage. Therefore, it is important for the client to avoid consuming grapefruit juice while taking Atorvastatin. Choices A, C, and D are incorrect because Atorvastatin can be taken with or without food, at any time of the day, and there is no specific need to increase potassium-rich foods while on this medication.

4. A client has been taking Sertraline for the past 2 days. Which of the following assessment findings should alert the nurse to the possibility that the client is developing Serotonin syndrome?

Correct answer: B

Rationale: The correct answer is B: Fever. Fever is a key symptom of serotonin syndrome, a potentially life-threatening condition that can occur with the use of serotonergic medications like Sertraline. Serotonin syndrome is characterized by a combination of symptoms, including fever, agitation, rapid heartbeat, sweating, shivering, tremors, and in severe cases, it can lead to seizures, coma, and even death. Bruising (Choice A), abdominal pain (Choice C), and rash (Choice D) are not typically associated with serotonin syndrome. Therefore, the nurse should be vigilant in monitoring for fever as an early sign of serotonin syndrome in clients taking Sertraline.

5. A client is prescribed Lithium. Which of the following laboratory values should be monitored to assess for potential toxicity?

Correct answer: B

Rationale: When a client is prescribed Lithium, monitoring serum lithium levels is crucial to ensure they remain within the therapeutic range and to assess for potential toxicity. Monitoring serum lithium levels helps prevent adverse effects associated with lithium toxicity, such as nausea, vomiting, diarrhea, tremors, and confusion.

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