A nurse is caring for a client who has breast cancer and reports pain. 1 hr after administration of prescribed morphine 10 mg IV. Which of the following medications should the nurse expect to administer?

The correct answer is D: Fentanyl transmucosal. Fentanyl is a potent opioid used for severe pain, and transmucosal administration provides rapid relief. Naloxone (A) is an opioid antagonist used to reverse opioid overdose, not for pain management. Morphine tablet (B) is not indicated for immediate relief after IV morphine. Lidocaine patch (C) is used for localized pain, not post-IV opioid pain control. Therefore, fentanyl transmucosal (D) is the most appropriate choice for rapid pain relief in this scenario.