A Patient with Degenerative Arthritis Complains,"For the Past Month I

A patient with degenerative arthritis complains,"For the past month I have been having a lot of trouble sleeping.I cannot seem to fall asleep.When I finally do get to sleep,I wake up over and over during the night." Which information should the nurse seek initially?

A) "What have you done to try to improve your sleep?"
B) "What would be a good sleep pattern for you?"
C) "How much exercise are you getting?"
D) "Do you have pain at night?"