The Patient Will Be Having Medication Administered Through a Patient-Controlled

The patient will be having medication administered through a patient-controlled analgesia (PCA) system after surgery.To assist the family members with an understanding of how this therapy works,which of the following explanations does the nurse offer to the family?

A) The patient has control over the access to medication when he or she needs it.
B) The patient can choose the dosage of the drug received.
C) The patient can request the type of medication received.
D) The patient controls the route for administering the medication.