Chest compressions should first place the patient in a relatively flat and hard place. Then fully expose the patient's chest and perform chest compressions. The general compression frequency is 100- 120 times/minute, the compression position is the middle and lower sternum 1/3, and the compression depth is 5-6cm.
After 30 times of chest compressions, the patient's airway should be opened first, then the foreign bodies and constricted secretions in the patient's mouth should be removed, and then mouth-to-mouth artificial respiration should be carried out.
The key point of artificial respiration is to open the airway, hold the patient's nose, make the patient's mandibular angle perpendicular to the bottom of the earlobe, and then carry out artificial respiration. When carrying out artificial respiration, it depends on whether the chest fluctuates, and the breathing volume should be greater than 1 s.
Do 30 chest compressions, 2 artificial breaths, 5 times at 30: 2, re-evaluate the patient's vital signs, and call 120 for further treatment after arriving at the hospital.
Extended data
Once cardiac arrest occurs, if it is not rescued immediately and in time, it will cause irreversible damage to the patient's brain and other important organs and tissues within 4 ~ 6 minutes. Therefore, cardiopulmonary resuscitation must be carried out immediately after cardiac arrest to win the most precious time for further rescue until the life of the patient with cardiac arrest is saved.
On-site cardiopulmonary resuscitation should be carried out continuously, and it is not easy to make a decision to stop resuscitation. If the following conditions are met, on-site rescuers can consider stopping resuscitation: the patient's breathing and circulation have been effectively restored; No heartbeat and spontaneous breathing, lasting for more than 30 minutes at room temperature, and the emergency medical service personnel are present to confirm that the patient has died; Rescue medical service personnel take over the recovery or other personnel take over the rescue.
References:
Baidu encyclopedia-cardiopulmonary resuscitation