A Client Scheduled for Surgery Is Instructed on the Use

A client scheduled for surgery is instructed on the use of a patient-controlled analgesic device that she will use after the procedure. What are the advantages this device for pain control? (Select all that apply.)

A) The client controls the timing of medication delivery.
B) The client does not have to wait for a nurse to provide pain medication.
C) The nurse does not have to check on the client as frequently.
D) The physician does not need to prescribe various pain medication after the surgery.
E) The medication is delivered intravenously.
F) Pain control improves client comfort after surgery.