A nurse is teaching a client about how to use a patient-controlled analgesia (PCA) pump. Which of the following instructions should the nurse include in the teaching?

"Ask a family member to push the patient-control button when the client is sleeping."

"Several bolus doses are infused if the button is pushed repeatedly within a 5 to 10 minute timeframe before lock-out."

"There is a 30 minute lock-out limit programmed on your PCA pump."

"Use the pain scale to determine if you need to self-administer."