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 educating a client with a new prescription for Amlodipine, which instruction should the nurse provide?

Correct answer: B

Rationale: The correct answer is to advise the client to avoid driving until they understand the medication's effects. Amlodipine can cause dizziness, making it unsafe to drive until the client knows how the medication affects them. This instruction promotes client safety and prevents potential accidents due to medication side effects.

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

Correct answer: A

Rationale: The correct answer is 'Dry cough.' Lisinopril, an ACE inhibitor, commonly causes a persistent dry cough as an adverse effect. If the client experiences this, it is important to notify the healthcare provider for further evaluation and management.

4. A client has a new prescription for Losartan. Which of the following laboratory values should the nurse monitor?

Correct answer: A

Rationale: Corrected Rationale: Losartan, an angiotensin II receptor blocker (ARB), can cause hyperkalemia. The nurse should monitor the client's serum potassium levels closely because Losartan can increase potassium levels, potentially leading to serious complications such as arrhythmias. Monitoring serum sodium, calcium, or magnesium levels is not typically necessary when a patient is prescribed Losartan, as these values are not directly affected by this medication.

5. Which of the following is considered a class IA Sodium Channel blocker?

Correct answer: D

Rationale: Procainamide is a class IA antiarrhythmic drug that acts as a sodium channel blocker by blocking fast sodium channels. Mexiletine is a class IB antiarrhythmic drug, not class IA. Amiodarone is a class III antiarrhythmic, and Quinidine is a class IA antiarrhythmic but not a sodium channel blocker.

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