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 healthcare provider is providing instructions to the parent of an adolescent client who has a new prescription for Albuterol, PO. Which of the following instructions should the healthcare provider include?

Correct answer: B

Rationale: Tremors may occur as a result of excessive stimulation of beta2 receptors in skeletal muscles when using Albuterol. It is important to educate the parent about potential adverse effects to ensure proper monitoring and management of the adolescent client's medication regimen.

3. A client in the emergency department has Benzodiazepine toxicity due to an overdose. Which of the following actions is the nurse's priority?

Correct answer: B

Rationale: In a situation where a client presents with Benzodiazepine toxicity, the priority action for the nurse is to assess the client. By identifying the client's level of orientation, the nurse can gather crucial information about the client's mental status, which is essential for determining the appropriate care and interventions needed. Administering flumazenil is used to reverse the effects of benzodiazepines but should be based on a comprehensive assessment. Infusing IV fluids and preparing for gastric lavage may be necessary interventions but should follow a thorough assessment of the client's condition to ensure proper prioritization of care.

4. A healthcare provider is reviewing a client's health record and notes that the client experiences permanent extrapyramidal effects caused by a previous medication. The healthcare provider should recognize that the medication affected which of the following systems in the client?

Correct answer: C

Rationale: The correct answer is C: Central nervous. Extrapyramidal effects are movement disorders that can be caused by certain medications affecting the central nervous system, such as typical antipsychotic medications. These effects can lead to symptoms like tremors, muscle rigidity, and involuntary movements, which are all related to disruptions in the central nervous system. Choices A, B, and D are incorrect because extrapyramidal effects are specifically associated with the central nervous system and not the cardiovascular, immune, or gastrointestinal systems.

5. A client has a new prescription for Nifedipine. Which of the following adverse effects should the nurse monitor?

Correct answer: B

Rationale: Nifedipine, a calcium channel blocker, can lead to peripheral edema as an adverse effect. The nurse should monitor the client for swelling in the lower extremities, as it indicates the onset of edema. Hypertension is typically treated with Nifedipine and is not an adverse effect of the medication. Hyperglycemia and bradycardia are not commonly associated with Nifedipine use. Therefore, the correct adverse effect to monitor for when a client is prescribed Nifedipine is edema.

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