What is the correct maneuver to ensure an open airway in an unconscious victim with no spinal injury?

The head-tilt/chin-lift maneuver is an effective way to open the airway of an unconscious victim without a spinal injury. This technique involves tilting the head back slightly while lifting the chin up, which helps to reposition the tongue and clear any obstruction from the airway. It is particularly useful because it allows for a simple and quick way to establish airflow, which is critical in emergencies where breathing may be compromised.

When the victim is unconscious, the muscles relax, and the tongue can fall back into the throat, blocking the airway. By using the head-tilt/chin-lift maneuver, the rescuer can effectively overcome this potential obstruction. This method is widely accepted and taught in CPR and first aid training as a primary way to ensure breathing is restored.

In contrast, the jaw thrust maneuver is more suitable for situations where spinal injuries are suspected, as it minimizes movement of the head and neck. The recovery position is for stabilizing an unconscious but breathing individual, while the modified Heimlich maneuver is designed to relieve choking and is not applicable for airway management in unconscious victims. Therefore, using the head-tilt/chin-lift maneuver is essential for maintaining an open airway in the situation described.