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. What instruction should the healthcare provider include to minimize an adverse effect of Clomipramine for OCD in an adolescent client?

Correct answer: A

Rationale: The correct answer is A: 'Wear sunglasses when outdoors.' To minimize the anticholinergic effect of Clomipramine, the client should wear sunglasses when outdoors to reduce photophobia. This adverse effect is common with tricyclic antidepressant (TCA) use. Choices B, C, and D are incorrect. Checking temperature daily, timing of medication intake, or adding extra calories to the diet are not directly related to minimizing adverse effects of Clomipramine.

3. A client asks a nurse about Feverfew. Which response should the nurse provide?

Correct answer: B

Rationale: The correct response is B: 'It can decrease the frequency of migraine headaches.' Feverfew is known for reducing the frequency of migraine headaches, but it has not been proven to relieve an existing migraine headache. Choices A, C, and D are incorrect because Feverfew is not used to treat skin infections, lessen nasal congestion in the common cold, or relieve nausea of morning sickness during pregnancy.

4. A client has a prescription for ceftriaxone. Which of the following information should the nurse include in the teaching?

Correct answer: B

Rationale: The correct answer is B. The nurse should instruct the client to discontinue ceftriaxone if a rash develops, as it could indicate an allergic reaction that needs to be reported to the healthcare provider for further evaluation and management. Choices A, C, and D are incorrect because cough development, oral administration, and yellow urine are not typically associated with ceftriaxone use and are not critical information that the nurse needs to emphasize in this scenario.

5. A client has a new prescription for Clozapine. Which of the following statements should the nurse include in the teaching?

Correct answer: D

Rationale: Clozapine has a risk for fatal agranulocytosis, making weekly monitoring of the client's white blood cell (WBC) count essential to detect any potential issues early. This monitoring helps in managing the risk and ensuring the client's safety while on clozapine.

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