Final answer:
The primary method of opening the airway for a patient with a suspected cervical spine injury is the Modified jaw thrust maneuver.
Step-by-step explanation:
The primary method of opening the airway for a patient with a suspected cervical spine injury is the Modified jaw thrust maneuver.
The other options listed in the question, such as the Head tilt/chin lift maneuver, Heimlich maneuver, and Head tilt/neck lift maneuver, may potentially worsen the injury or cause further damage to the cervical spine.
The Modified jaw thrust maneuver involves placing the fingers behind the angle of the lower jaw and lifting it forward, displacing the tongue from the back of the throat and opening the airway.