A client with terminal cancer reports increasing pain that occurs 1 to 2 hours before the next scheduled dose of a prescribed opioid analgesic. Which action should the practical nurse (PN) implement?

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: Eating aged cheeses, high in tyramine, is relevant for monoamine oxidase inhibitors, not TCAs, which do not interact with tyramine. This dietary habit does not affect TCA-related sleep disturbances, making it irrelevant for addressing the client’s early morning awakening.

Choice B reason: Taking a warm bath at night may promote relaxation but does not directly address TCA-related sleep issues. While helpful for general sleep hygiene, it is less critical than medication timing, which directly influences TCA’s stimulatory effects on sleep patterns.

Choice C reason: Dry mouth is a common TCA side effect due to anticholinergic properties but is not directly linked to sleep disturbances. It may cause discomfort but does not explain or address early morning awakening, making this information less relevant for sleep improvement.

Choice D reason: Taking TCAs upon rising can cause insomnia, as their stimulatory effects peak during sleep hours. TCAs increase norepinephrine, disrupting sleep architecture. Adjusting to bedtime dosing may reduce early morning awakening, making this information critical for optimizing sleep and therapeutic outcomes.