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 client has a new prescription for Atenolol. Which of the following client statements indicates an understanding of the teaching?

Correct answer: A

Rationale: The correct answer is A. Clients taking Atenolol, a beta-blocker, should monitor their blood pressure regularly to ensure the medication is effectively managing their condition. Monitoring blood pressure helps in assessing the drug's effectiveness and identifying any potential side effects that may influence blood pressure levels. Choices B, C, and D are incorrect because taking Atenolol at bedtime, with a high-fat meal, or increasing potassium-rich foods intake are not recommended actions associated with this medication and do not demonstrate an understanding of the teaching.

3. A client has a prescription for Timolol eye drops for the treatment of glaucoma. Which of the following instructions should the nurse include?

Correct answer: A

Rationale: The correct instruction for the nurse to include is to apply gentle pressure to the nasolacrimal duct for 30 to 60 seconds after application. This technique helps prevent systemic absorption of the medication, reducing the risk of systemic side effects. By applying pressure, the drainage of the medication into the bloodstream through the nasolacrimal duct is minimized, enhancing the drug's local ocular effects. Choices B, C, and D are incorrect because blinking immediately after instilling the drops, keeping eyes closed for 5 minutes, and administering the drops directly onto the cornea are not recommended practices for administering Timolol eye drops.

4. When teaching a client with a new prescription for Ramelteon, which of the following foods should the nurse instruct the client to avoid?

Correct answer: B

Rationale: The correct answer is B: Fried chicken. High-fat foods, like fried chicken, can delay the absorption of Ramelteon. It is important for the client to avoid such foods to ensure the medication's effectiveness. Baked potato, whole-grain bread, and citrus fruits do not have a significant interaction with Ramelteon and can be consumed safely while taking the medication.

5. A client has a new prescription for Nevirapine, an NNRTI. Which of the following statements should the nurse include in discharge teaching?

Correct answer: B

Rationale: The correct statement to include in discharge teaching about Nevirapine, an NNRTI, is to advise the client to avoid alcohol while taking this medication. Alcohol can interact with Nevirapine and lead to potential adverse effects or decreased effectiveness. Choice A is incorrect because Nevirapine should be taken without food or on an empty stomach for optimal absorption. Choice C is a general recommendation for most medications but not specifically for Nevirapine. Choice D is incorrect as Nevirapine should not be taken on an empty stomach.

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