There are many different states of shock, of which circulatory shock (abbreviated as shock) is a disease caused by insufficient blood circulation to the cells. It is very necessary to carry out first aid steps for people with shock to prevent blood loss and maintain the victim's body temperature.

Cardiac arrest is a phenomenon in which the heart suddenly stops pumping blood to nourish the body. When the heart stops pumping blood, the patient's brain will be deprived of oxygen and cause unconsciousness and respiratory arrest.

Artificial respiration and external cardiac massage are the most basic first aid methods when encountering a person with cardiac arrest or suffocation. However, the most important factor that determines the effectiveness of first aid is that the rescuer must have a good understanding of artificial respiration techniques.

In life, equipping yourself with first aid methods for victims in case of trauma or respiratory arrest, cardiac arrest due to drowning, suffocation, electric shock... is extremely necessary. Of which, artificial respiration is the most basic technique. So how many artificial respiration methods are there?

The AHA Guidelines for Cardiopulmonary Resuscitation (CPR) and Emergency Cardiovascular Care (ECC) 2015 Update is based on an international evidence review process involving 250 evidence reviewers from 39 countries ECC Guidelines 2015