1, evaluation and site safety: The first rescuers patted the patient on the shoulder and shouted, "Are you all right?" Check whether the patient is breathing.
2. If the patient is found to be unresponsive and not breathing, the emergency personnel should start the EMS system (dial 120), get an AED (if possible), perform cardiopulmonary resuscitation on the patient, and immediately perform defibrillation if necessary.
3. Pulse check: For non-professional emergency personnel, training them to check their pulse is no longer emphasized. As long as the unresponsive patient is found not to breathe spontaneously, it should be treated as cardiac arrest. For medical staff, it is common to touch the patient's carotid artery with one index finger and middle finger to feel whether there is pulsation.
4. Chest compressions: Make sure the patient lies on a flat ground or uses chest compressions pads under his shoulders. First-aiders can put the palm root of one hand in the center of the patient's chest, under the sternum, and the palm root of the other hand on the first hand in different postures, such as kneeling or pedaling.
5. Open the airway: An important change in the 20 10 American Heart Association CPR and ECC guidelines is to start chest compressions before ventilation.
6, artificial respiration: before giving artificial respiration, you can inhale normally without deep inhalation; All artificial respiration (mouth-to-mouth resuscitation, mouth-to-mouth resuscitation, airbag-to-mouth resuscitation or airbag-to-high airway resuscitation) should be continuously blown for more than 1 s to ensure enough gas to enter and make the chest fluctuate.
Extended data
Basic life support, also known as initial or on-site first aid, aims to make patients wake up immediately after cardiac arrest by hand, so that the heart can get the minimum emergency oxygen supply, the brain and important organs of patients with cardiac arrest (usually 25%-30% of normal blood supply can be provided through formal training).
The basis of bls includes the identification of cardiac arrest, the start of emergency response system, early cardiopulmonary resuscitation (cpr) and the rapid use of automated external defibrillator for defibrillation.
Baidu encyclopedia-cardiopulmonary resuscitation