What should you do if your coworker trips, falls, and hits her head on the sidewalk and is unconscious?

In situations where a coworker has tripped, fallen, and become unconscious, the priority is to ensure that professional medical assistance is summoned without delay. Using the truck radio to call for help is the appropriate response because it ensures that trained medical personnel can be on their way as quickly as possible. This action is crucial as head injuries can be serious, and medical professionals are equipped to deliver the necessary care.

It's also essential to note that while checking for breathing and pulse may be important in certain emergency scenarios, calling for help first is more critical because it brings medical professionals to the scene. Additionally, carrying an unconscious person can risk further injury, especially if there are potential spinal injuries or complications that could worsen with movement. Waiting for them to regain consciousness is not advisable, as any delay in seeking help could jeopardize their well-being.