a provider prescribes phenobarbital for a client who has a seizure disorder the medication has a long half life of 4 days how many times per day shoul
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Nursing Elites

ATI RN

ATI Pharmacology Proctored Exam

1. A provider prescribes phenobarbital for a client who has a seizure disorder. The medication has a long half-life of 4 days. How many times per day should the nurse expect to administer this medication?

Correct answer: A

Rationale: Phenobarbital has a long half-life of 4 days, meaning it remains at therapeutic levels in the body for an extended period. Due to this prolonged duration of action, the nurse should expect to administer phenobarbital once a day to maintain therapeutic levels and effectiveness. Administering it more than once a day would lead to unnecessary dosing and potential adverse effects as the medication remains active in the body for an extended period.

2. When teaching a client with a new prescription for Lisinopril, which instruction should the nurse include?

Correct answer: B

Rationale: The correct answer is B: 'Expect a persistent, dry cough.' Lisinopril, an ACE inhibitor, commonly causes a persistent, dry cough as a side effect. This should be reported to the healthcare provider if it becomes bothersome. It is essential for the nurse to educate the client about this potential side effect so the client is aware and can seek appropriate guidance if needed. Choices A, C, and D are incorrect. Taking Lisinopril with food is not required. Increasing potassium-rich foods is not a specific instruction for Lisinopril, and taking the medication at bedtime is not a typical recommendation associated with this medication.

3. A client is being educated by a healthcare provider about managing Digoxin toxicity. Which statement by the client demonstrates an understanding of the teaching?

Correct answer: B

Rationale: The correct answer is B. Visual changes, such as yellow or blurred vision, can be indicative of digoxin toxicity. It is crucial for clients to inform their healthcare provider promptly if they encounter these symptoms. Prompt medical attention can help manage potential toxicity and prevent complications. Choices A, C, and D are incorrect because taking an extra dose of Digoxin, stopping Digoxin based on heart rate alone, and using antacids for gastrointestinal upset are not appropriate actions when managing Digoxin toxicity.

4. A client with a history of migraine headaches is starting prophylaxis therapy with Propranolol. Which of the following findings in the client history should be reported to the provider by the nurse?

Correct answer: D

Rationale: Propranolol is contraindicated in clients with a first-degree heart block due to its negative chronotropic properties that can further slow the heart rate. This can worsen conduction through the atrioventricular node, potentially leading to heart block progression. Therefore, the nurse should report the finding of a first-degree heart block to the provider before initiating Propranolol therapy. Choices A, B, and C are not contraindications for Propranolol therapy. A prior myocardial infarction, taking warfarin for atrial fibrillation, or using an SSRI for depression do not directly impact the initiation of Propranolol therapy in a client with a history of migraine headaches.

5. A healthcare professional is about to administer Propranolol to a patient. The healthcare professional takes the patient's apical pulse and documents it as 58 bpm. How should the healthcare professional proceed?

Correct answer: D

Rationale: When a patient's apical pulse is 58 bpm, it is below the normal range. Propranolol is a beta-blocker that can further lower the heart rate. Therefore, it is crucial to withhold the medication and notify the healthcare provider to evaluate the patient's condition. Administering Propranolol in this situation can exacerbate bradycardia, leading to serious complications. Choosing to administer the medication as prescribed (Choice A) can put the patient at risk. Administering half of the normal dose (Choice B) without healthcare provider guidance is not appropriate in this case. Considering the extended-release form of the medication (Choice C) does not address the immediate concern of bradycardia and is not the best course of action.

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