Final answer:
Assess distal pulse, motor, and sensory functions, place a pillow under the arm and apply a swathe.
Step-by-step explanation:
When encountering a patient with a dislocated shoulder, it is important to assess distal pulse, motor, and sensory functions (A) to ensure there is no compromise to blood flow or nerve function. Attempting to move the arm toward the body (B) should be avoided as it can worsen the injury and increase pain. Instead, a pillow should be placed under the arm and a swathe applied (C) to immobilize the shoulder. Flexing the arm at the elbow and applying a sling (D) is not recommended for a dislocated shoulder.