Describe how to perform the head-tilt, chin-lift maneuver.

The head-tilt, chin-lift maneuver is a fundamental technique used in emergency situations to open the airway of a person who is unresponsive and not breathing normally. This technique is performed by placing one hand on the victim's forehead and the other hand under the chin. By tilting the head back gently while simultaneously lifting the chin forward, you create a straight pathway from the mouth to the airway, effectively opening it. This repositioning is crucial, as it helps to prevent the tongue from obstructing the airway, which is a common issue in unresponsive patients.

The other options do not accurately reflect the correct methodology for performing this life-saving maneuver. For instance, using both hands under the jaw to pull the mouth open does not focus on opening the airway properly and could instead exacerbate any blockage. Similarly, placing a palm on the face and tilting the head to the side may not effectively manage potential airway obstruction. Finally, placing one hand on the neck and the other on the cheek does not provide the necessary leverage to open the airway, as this technique is not designed to lift the chin or tilt the head back adequately. Thus, understanding the correct approach is vital for any EMT in ensuring patient safety and effectiveness during resuscitation efforts.