A nurse is providing teaching to a client who has a new prescription for PCA. Which of the following statements should the nurse make?

A. "Your device is set to allow you to deliver small doses more frequently.": PCA (patient-controlled analgesia) allows the client to self-administer small, controlled doses of pain medication as needed. This statement accurately explains how the device works and emphasizes client control within safe limits. B. "Using this device allows you to use less medication than other methods.": While PCA can improve pain management, it does not necessarily reduce the total amount of medication used. The primary benefit is timely pain relief and maintaining therapeutic levels, not automatically using less medication. C. "Your family member can push the PCA button for you if you're sleeping": Only the client should activate the PCA device to prevent overdose. Allowing others to push the button, a practice called “PCA by proxy,” is unsafe and can lead to serious complications. D. "You will need to keep track of each dose you administer to avoid taking too much.": The PCA device is programmed with safety limits, including lockout intervals, to prevent overdose. The client does not need to manually track doses, as the device automatically controls and records administration.