A 58-year-old female presents to outpatient physical therapy…

A 58-year-old female presents to outpatient physical therapy 4 weeks after ORIF of a proximal humerus fracture. She has been immobilized in a sling for most of the past month. Imaging confirms fracture union. She reports mild shoulder pain (3/10) and is taking prescribed muscle relaxants. On observation, there is mild swelling around the shoulder and guarded movement during attempts at PROM. Which factor MOST influences the PTA’s decision-making regarding shoulder PROM?