A client with emphysema who is receiving a bronchodilator reports to the practical nurse (PN) feelings of jitters and dry mouth. Which finding should the PN record as a measure of the medication’s effectiveness?

Choice A reason: Taking a benzodiazepine with morphine is incorrect, as it increases sedation and respiratory depression risk, a dangerous opioid side effect. This indicates misunderstanding, as morphine’s primary management focuses on pain and side effects like constipation, not concurrent sedative use.

Choice B reason: Observing bowel movements and using a stool softener shows understanding, as morphine causes constipation by slowing gastrointestinal motility via opioid receptors. Proactive management with stool softeners prevents complications like impaction, aligning with safe opioid use in cancer pain management.

Choice C reason: Grapefruit juice avoidance is irrelevant to morphine, as it affects drugs metabolized by CYP3A4, not opioids. Morphine is metabolized via glucuronidation, unaffected by grapefruit. This indicates misunderstanding, as it does not address morphine’s key side effects or management.

Choice D reason: Watching for agitation or insomnia is not a primary concern with morphine, which causes sedation. These symptoms may relate to other conditions, but they do not reflect understanding of morphine’s effects, like constipation, making this choice incorrect.

Choice A reason: Stopping disulfiram for nausea or vomiting is incorrect, as these are expected in alcohol reactions, not side effects warranting discontinuation. Disulfiram inhibits aldehyde dehydrogenase, causing acetaldehyde buildup if alcohol is consumed, leading to these symptoms, which reinforce alcohol avoidance.

Choice B reason: Avoiding all alcohol, including in cough syrups, is critical, as disulfiram causes severe reactions (flushing, nausea) by blocking acetaldehyde metabolism. Even small amounts trigger symptoms, reinforcing abstinence in alcohol dependence treatment, making this the most important instruction for safety and efficacy.

Choice C reason: Taking disulfiram at the same time daily promotes adherence but is less critical than avoiding alcohol, which directly prevents severe reactions. Consistency aids therapeutic levels, but alcohol exposure poses immediate health risks, making this instruction secondary.

Choice D reason: Weekly blood tests are not standard for disulfiram, as therapeutic levels are not routinely monitored, and sodium is unaffected. Liver function may be checked periodically, but alcohol avoidance is the priority to prevent acute reactions, making this choice incorrect.