1. Begin with CPR in children, as in adults, first determine whether consciousness has disappeared. Then determine whether breathing has stopped. The rescuer cannot see the chest and abdomen lift of the patient, and cannot feel or hear the sound of airflow during exhalation. The airway should be opened immediately, and emergency breathing should be performed immediately. The rescuer's mouth must be tightly covered with the baby's mouth and nose; if the patient is a child, just like an adult, pinch the nose and cover the mouth for artificial respiration. Breathe out in two quick consecutive breaths to open up blocked airways and small alveoli and prevent the lungs from retracting. The blowing force is based on the rise of the chest, and the