Maintaining an open and clear airway is a critical priority in first aid, particularly when dealing with an unconscious casualty. The airway can become obstructed by the tongue, fluids such as blood or vomit, or foreign objects. Ensuring the airway is clear involves using techniques such as the head-tilt/chin-lift maneuver for adults and children, and a neutral head position for infants due to their softer tracheas.
The rescuer should look, listen, and feel for signs of normal breathing and be prepared to clear the airway using a sweeping motion with their fingers if there are obstructions. If the casualty is not breathing normally, commence cardiopulmonary resuscitation (CPR) immediately while maintaining the airway to prevent asphyxiation and enhance the effectiveness of rescue breaths and chest compressions.
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