what is the therapeutic use of phenytoin
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Nursing Elites

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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 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.

3. When teaching a client with a prescription for long-term use of oral prednisone for chronic asthma, the nurse should instruct the client to monitor for which of the following adverse effects of this medication?

Correct answer: A

Rationale: The correct answer is weight gain. Weight gain and fluid retention are common adverse effects of oral prednisone due to sodium and water retention. Patients on long-term prednisone therapy should be advised to monitor their weight closely and report any significant changes to their healthcare provider. Choice B, 'Nervousness,' is not typically associated with oral prednisone use. Choice C, 'Bradycardia,' refers to a slow heart rate, which is not a common adverse effect of prednisone. Choice D, 'Constipation,' is not a typical adverse effect of oral prednisone; instead, gastrointestinal disturbances like increased appetite or even peptic ulcer disease may occur.

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

Correct answer: A

Rationale: The correct answer is A: 'Take this medication before meals.' Omeprazole is a proton pump inhibitor that should be taken before meals to be most effective in reducing stomach acid production. Taking it before meals allows the medication to inhibit the proton pumps in the stomach when they are most active, leading to better control of acid secretion. Choice B is incorrect because taking Omeprazole with food may reduce its effectiveness as food can interfere with its absorption. Choice C is incorrect as Omeprazole is more effective when taken before meals. Choice D is incorrect as Omeprazole should not be taken with antacids as they can reduce its absorption.

5. A client is starting therapy with cisplatin, and a healthcare provider is providing education. Which of the following findings should the healthcare provider instruct the client to report?

Correct answer: A

Rationale: The correct answer is A: Tinnitus. The healthcare provider should instruct the client to report tinnitus, as it can be an indication of ototoxicity, an adverse effect associated with cisplatin therapy. Ototoxicity is damage to the inner ear structures that can lead to hearing loss, making it crucial for the client to report any early signs such as tinnitus to prevent further complications. Choices B, C, and D are less concerning in the context of cisplatin therapy. Nausea and constipation are common side effects of cisplatin but are not typically indicative of serious complications requiring immediate reporting. Weight gain is not a typical side effect associated with cisplatin therapy and is less likely to be related to the medication.

Similar Questions

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A healthcare professional is reviewing a new prescription for Ondansetron 4 mg PO PRN for nausea and vomiting for a client who has Hyperemesis Gravidarum. The healthcare professional should clarify which of the following parts of the prescription with the provider?
A healthcare professional is reviewing laboratory findings and notes that a client's plasma Lithium level is 2.1 mEq/L. Which of the following is an appropriate action by the healthcare professional?
When instructing a client with a new prescription for Timolol on how to insert eye drops, which area should the nurse instruct the client to press on to prevent systemic absorption of the medication?

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