A healthcare provider is providing range of motion to the shoulder and must perform external rotation. Which action will the provider take?

The correct action for external rotation of the shoulder involves moving the patient's arm until the thumb is upward and lateral to the head with the elbow flexed. This position maximizes external rotation at the shoulder joint. Choices A, moving the arm in a full circle, B, moving the arm across the body, and C, moving the arm behind the body with the elbow straight, do not describe external rotation and are incorrect. Therefore, Choice D is the correct action for performing external rotation.