A nurse is providing discharge teaching to a client who has cancer and a prescription for a fentanyl 25 mcg/hr transdermal patch. Which of the following instructions should the nurse include in the teaching?

Rationale: A. "Avoid high-fiber foods while taking this medication." High-fiber foods are encouraged when taking opioids like fentanyl due to the common side effect of constipation. Dietary fiber supports bowel function and should not be avoided. B. "Apply the patch to your forearm." The patch should be applied to a flat, non-irritated area with minimal hair, such as the chest, back, or upper arm. The forearm is not the preferred site due to its mobility and smaller surface area. C. "Avoid hot tubs while wearing the patch." Heat increases the absorption rate of transdermal fentanyl, potentially leading to overdose. Clients should avoid hot tubs, heating pads, or prolonged exposure to direct sunlight while wearing the patch. D. "Remove the patch for 8 hours every day to reduce the risk of tolerance." Fentanyl patches are designed to provide continuous pain control and should not be removed intermittently. Removing the patch disrupts pain management and does not prevent tolerance, which is managed by medical adjustment if necessary.