The nurse makes the following statement during a change of shift report to another nurse. 'I assessed Mr. Diaz, my 61-year-old patient from Chile. He fell at home and hurt his back 3 days ago. He has some difficulty turning in bed, and he says that he has pain that radiates down his leg. He rates his pain at a 6, but I don’t think it’s that severe. You know that back patients often have chronic pain. He seems fine when talking with his family. Have you cared for him before?' What does the nurse’s conclusion suggest?