What should be done first for an unconscious accident victim with suspected neck injury?

In the case of an unconscious accident victim with a suspected neck injury, the priority is to stabilize the injured area and prevent further harm. The correct initial action is to place a pillow or any firm support under the victim's head. This helps to keep the neck aligned and reduces the risk of exacerbating any potential spinal injuries. It is crucial to avoid unnecessary movement that could worsen the injury.

Checking for breathing is certainly vital in emergencies, but impairing the stability of the neck while doing so can lead to more complications. Similarly, loosening clothing around the neck or turning the person onto their stomach could lead to further movement of the spine or neck, which is extremely risky given the potential for a serious injury. Prioritizing the stabilization of the head and neck is a fundamental principle in managing such emergencies effectively.