What technique should be used to open the airway during CPR?

The technique used to open the airway during CPR is the chin lift or jaw thrust maneuver. This method is essential because it helps to align the airway in a way that prevents obstruction, allowing for effective ventilation. Specifically, the chin lift involves placing two fingers under the chin and elevating it, which moves the tongue away from the back of the throat where it could block airflow.

The jaw thrust maneuver is particularly valuable if there is a suspicion of spinal injury, as it can be performed without tilting the head backward, thus maintaining the alignment of the spine. This dual approach to airway management is vital in a CPR scenario, ensuring unobstructed access to the airway for rescue breaths.

Other techniques, such as the head tilt only, do not provide the same level of safety for all patients, especially those with potential spinal injuries. The nose pinch method pertains to controlling nasal airflow, which is not applicable for maintaining an open airway during CPR. The side-lying position is more suitable for recovery situations and does not facilitate effective ventilation during cardiac arrest. Therefore, the chin lift or jaw thrust maneuver stands out as the appropriate technique to ensure that the airway is safely and effectively managed during CPR.