A client who is 84 years old is experiencing chronic lower back that has not responded to NSAIDs. The provider has prescribed a transdermal fentanyl patch. What should the nurse do to ensure safe and effective care? Select all that apply.

A. Monitor the client's respiratory status closely: Fentanyl is a potent opioid that can cause respiratory depression, especially in older adults. Close monitoring is essential, particularly during the initial dosing period and after any dosage changes. B. Ensure that the client has access to the call light: Opioids can cause dizziness, sedation, or confusion, increasing fall risk. The client should have immediate access to help if needed to prevent injury. C. Keep the client's bed in the lowest position: Safety precautions like keeping the bed low help prevent injury if the client becomes drowsy or disoriented from the medication. This is especially important in older adults at high risk for falls. D. Avoid administering any other medications while the transdermal patch is in place: Other medications may be necessary and can be safely co-administered with fentanyl under appropriate supervision. E. Monitor the client's temperature before and after administration: Increased body temperature can enhance fentanyl absorption from the patch, increasing the risk of overdose. Monitoring temperature helps detect and address this risk promptly.