Step 2: Keep the respiratory tract unobstructed (A). Hypoxemia and respiratory arrest in children make the condition deteriorate sharply and the heartbeat stops breathing. Therefore, the establishment and maintenance of airway opening and adequate ventilation is the most important content of basic life support. First of all, the secretions, foreign bodies or vomit in the airway should be removed, and the upper airway should be sucked with the nose and mouth when conditions permit. Methods: Put the child's head back, chin raised, one hand on the child's forehead, head tilted back and in the middle position, neck slightly extended, that is, sniffing position. Put a few fingers of the other hand under the chin, and lift the chin outward and upward. Be careful not to close your mouth or push the soft tissue under the chin to avoid blocking the airway. When the cervical spine injury can't move at all, you can open the airway by lifting your jaw. You can also place an oropharyngeal catheter to open the oropharynx.
The third step is to establish breathing (b). After the airway is unobstructed, put your ear close to the child's nose and mouth to judge whether there is effective breathing. If there is still no spontaneous breathing, artificial auxiliary ventilation should be used to maintain gas exchange. For newborns, if there is no spontaneous breathing or ineffective breathing, there is spontaneous breathing but the heart rate is
The fourth step is rapid defibrillation. When ventricular fibrillation, ventricular tachycardia and supraventricular tachycardia occur during resuscitation, electric shock can be used to defibrillation.
The fifth step is medication. Commonly used drugs are adrenaline, atropine, sodium bicarbonate, glucose, calcium, naloxone and lidocaine.
Then the above five steps are the operation steps we summarized about cardiopulmonary resuscitation in children.