What is the most important assessment in a 50-year-old CMV driver following a shoulder injury?

The most important assessment for a 50-year-old commercial motor vehicle (CMV) driver following a shoulder injury is the evaluation of shoulder range of motion. This assessment is critical because compromised range of motion can significantly impact a driver's ability to operate a vehicle safely.

In the context of driving, the capacity to reach and maneuver controls, as well as to check blind spots and react to traffic conditions, is heavily dependent on shoulder mobility. A limited range of motion may lead to difficulties in performing these necessary actions, increasing the risk of accidents.

Furthermore, assessing shoulder strength and stability are also important, but they are secondary to the immediate concern of whether the driver can move their arm freely and control the vehicle. Neurological response is relevant in assessing nerve damage but may not directly impact the operational requirements of driving as significantly as range of motion would. Thus, evaluating range of motion should take precedence in this scenario to ensure the driver's safety and ability to perform their driving duties effectively.