You are working on the orthopedic floor in a l…

              You are working on the orthopedic floor in a large hospital. You are working with a 78-year-old man who has undergone left shoulder arthroplasty. You have just assisted him out of bed to the bedside chair for breakfast. After breakfast he is planning to return to her bed. As you position the patient in the chair, which of the following considerations is most important?