what is the therapeutic use of phenytoin
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Nursing Elites

ATI RN

ATI Pharmacology Test Bank

1. What is the therapeutic use of Phenytoin?

Correct answer: C

Rationale: Phenytoin is primarily used to diminish seizure activity and is effective in terminating ventricular arrhythmias. It works by stabilizing neuronal membranes, reducing repetitive neuronal firing, and limiting the spread of seizure activity in the brain. While phenytoin does not have a direct role in preventing thrombus formation or extending existing thrombi, it is crucial in managing seizures and certain arrhythmias.

2. A nurse is teaching a client who has a new prescription for Prednisone. Which of the following instructions should the nurse include?

Correct answer: A

Rationale: Prednisone can lead to bone loss, so clients should increase their intake of vitamin D and calcium to help maintain bone health.

3. A client has a new prescription for Albuterol and Beclomethasone inhalers for the control of asthma. Which of the following instructions should the nurse include in the teaching?

Correct answer: B

Rationale: When a client is prescribed an inhaled beta2-agonist, such as albuterol, and an inhaled glucocorticoid, such as beclomethasone, for asthma control, the beta2-agonist should be administered first. This sequence is important because the beta2-agonist promotes bronchodilation, which enhances the absorption and effectiveness of the glucocorticoid. Instructing the client to administer the albuterol inhaler before using the beclomethasone inhaler ensures optimal therapeutic benefit. Therefore, option B is the correct choice. Option A is incorrect because the timing of albuterol administration may vary based on the prescribed regimen. Option C is incorrect because beclomethasone is a controller medication, not a rescue medication, and should not be used during acute episodes. Option D is incorrect because beclomethasone should be shaken before use to ensure proper dispersion of the medication.

4. When admitting a client and completing a preassessment before administering medications, which of the following data should the nurse include? (Select all that apply.)

Correct answer: A

Rationale: The correct answer is A, 'Use of herbal teas.' The nurse should inquire about the client's use of herbal teas because they often contain caffeine, which can impact medication biotransformation. This information is crucial to ensure the safe and effective administration of medications and to prevent potential drug interactions. Choice B, 'Daily fluid intake,' while important for overall assessment, is not directly related to medication administration. Choice C, 'Current health status,' is essential but not specific to medication administration preassessment. Choice D, 'Previous surgical history,' although relevant for a client's medical history, is not directly linked to medication administration preassessment.

5. A client has been prescribed Alendronate for osteoporosis. Which of the following instructions should the nurse provide?

Correct answer: A

Rationale: The correct instruction for a client prescribed Alendronate for osteoporosis is to take the medication with a full glass of water after getting up in the morning. This is important to reduce the risk of esophageal irritation. Choice B is also correct as remaining upright for at least 30 minutes after taking the medication helps prevent esophageal irritation and ensures proper absorption. Choice C is incorrect because Alendronate tablets should not be chewed or mixed with any other substance. Choice D is incorrect as taking the medication at bedtime increases the risk of esophageal irritation due to lying down after ingestion.

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