A client is in the hospital recovering from surgery. The client's adult child tells the nurse that they are concerned their parent will overdose on morphine because they keep pressing the button on the patient-controlled anesthesia (PCA) pump. In addition to reassessing the client's pain, what is the nurse's best response?

"I'll teach you some techniques to take their focus off the pain so they don't press the button so often."

"If they follow the directions given, that will not happen."

"I'll come and teach them again how to use the PCA safely and effectively."

"The device has maximum limits programmed, so your parent cannot get more than a specific amount."