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A 72-year-old patient is admitted to the hospital for surgery. After the patient returns to the floor, the patient's daughter tells the nurse she is concerned that her mother will overdose on morphine because she keeps pressing the button on her patient-controlled anesthesia (PCA) pump. What is the nurse's best response?A) "You should control how often she presses the button."B) "If she will follow the directions she was given, that will not happen."C) "The PCA device always provides the correct amount, so pressing the button is just for placebo effect."D) "The device is preset, so your mother cannot get more than a specific amount."

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