A nurse is providing preoperative teaching to a client about pain management using a patient-controlled analgesia (PCA) system. Which of the following three statements should the nurse include in the teaching? (Select all that apply.)

"You should avoid using the PCA system if you feel that the pain is manageable without medication.

"The PCA system is designed with safety features to prevent you from receiving too much medication.

"The PCA system is programmed to deliver a specific dose of medication each time you press the button."

"You will be able to administer pain medication to yourself by pressing the PCA button whenever you need it."

“Family members should press the PCA button for you if you are unable to do so yourself."