Before revision: It is recommended to start the cardiopulmonary resuscitation (CPR) with 2 initial rescue breaths (pinching the victim's nose and blowing air mouth-to-mouth) , because of the lack of oxygen and the possibility of water in the airway .
After revision: It is recommended to start the cardiopulmonary resuscitation (CPR) with 2 initial rescue breaths ; the rescue breaths are made by pinching the victim's nose and blowing air mouth-to-mouth, not excessively , because of the lack of oxygen and the possibility of water in the airway .