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?

A. "Remove the patch for 8 hours every day to reduce the risk of tolerance.": This is incorrect. The fentanyl patch should be left in place continuously for the prescribed duration to maintain consistent pain relief and should not be removed unless instructed by a healthcare provider. B. "Avoid hot tubs while wearing the patch.": This is an important instruction. Heat can increase the absorption of fentanyl from the patch, potentially leading to overdose. Therefore, avoiding hot tubs and other heat sources is crucial while using the patch. C. "Avoid high-fiber foods while taking this medication.": This statement is not accurate. In fact, opioid medications like fentanyl often cause constipation, so high-fiber foods can be beneficial to help prevent this side effect. D. "Apply the patch to your forearm.": This is not typically the recommended application site for fentanyl patches. They are usually applied to hairless areas of the upper body or upper outer arm, where they can adhere properly and be effective.