What is the first action to take if a coworker has sustained a high voltage shock and is unconscious?

In the event of a coworker sustaining a high voltage shock and becoming unconscious, the priority is to ensure safety for both the victim and the rescuer. The first action should be to shut off power to the structure. This prevents the risk of further electrocution, not just to the affected individual but also to anyone attempting to assist. High voltage scenarios are extremely dangerous, and without safely de-energizing the area, any effort to provide help could lead to additional injuries.

Once the power is safely off, it is appropriate to then assess the condition of the victim and utilize necessary first aid measures, including calling for medical assistance and potentially performing CPR if the individual is unresponsive and not breathing. Each subsequent step hinges on first ensuring that the environment is safe for intervention. This systematic approach ensures the safety of rescue efforts and is foundational in emergency response practices.