A nurse is reinforcing preoperative teaching about pain management using a patient-controlled analgesia (PCA) system with a client. Which of the following three statements should the nurse include?

A Push the button as the PCA prior to your pain level becoming severe so you can remain comfortable. C You we still have to request pain medication from the nurse from time to time. E Using the PCA regularly will provide a constant level of pain relief. B Your family member should push the PCA button for you while you are sleeping. D There is minimal risk of an overdose of pain medication while using the PCA pump.