the patient is describing moderate incisional pain that was not relieved by the last dose of hydromorphone (dilaudid) given 90 minutes earlier. the patient is not due for another dose of medication for another 2 1/2 hours. the nurse repositions the patient, asks what type of music she likes, and puts on the music channel on the television, setting it to play that type of music. the nurse is attempting to utilize which health care model?