A nurse is caring for a client who has an allergy to penicillin. The health care provider has prescribed amoxicillin. Which of the following actions should the nurse take?

Choice A reason: Disulfiram is an oral medication, not injectable, used to deter alcohol consumption by causing adverse reactions. Monthly injections apply to drugs like naltrexone, not disulfiram, which requires daily oral dosing to maintain its deterrent effect in alcohol use disorder treatment.
Choice B reason: Taking disulfiram before quitting alcohol is incorrect, as it is started post-abstinence to prevent relapse. Disulfiram inhibits aldehyde dehydrogenase, causing acetaldehyde buildup if alcohol is consumed, making it effective only in alcohol-free clients to deter drinking.
Choice C reason: Avoiding over-the-counter medications with alcohol is correct, as disulfiram causes severe reactions (nausea, flushing) with alcohol ingestion, including from medications like cough syrups. This reflects understanding of disulfiram’s mechanism, ensuring safety by preventing unintended alcohol exposure.
Choice D reason: Continuing disulfiram for 5 years is not standard, as duration varies per treatment plan. Disulfiram supports early abstinence, not fixed long-term use. This statement misrepresents its role, as therapy length depends on individual recovery needs, not a predetermined timeframe.

Choice A reason: Administering oxygen is premature without assessing the cause of chest heaviness. While hypoxia may occur in aneurysm rupture, stopping exertion reduces cardiovascular demand first, prioritizing safety in a client with an abdominal aortic aneurysm at risk for rupture.
Choice B reason: Having the client sit down is the priority, as chest heaviness may signal aneurysm instability. Rest reduces aortic wall stress and oxygen demand, preventing rupture or dissection, stabilizing the client for further assessment and intervention in this high-risk condition.
Choice C reason: Checking vital signs is important but secondary to stopping exertion. Chest heaviness suggests potential aneurysm rupture, and continued ambulation risks catastrophe. Sitting the client minimizes cardiovascular stress, allowing subsequent vital sign checks to guide further actions effectively.
Choice D reason: Notifying the provider is critical but not first. Chest heaviness requires immediate cessation of activity to reduce aortic pressure. Sitting stabilizes the client, allowing data collection (e.g., vital signs) before provider notification, ensuring urgent intervention for potential aneurysm complications.