3.Give two rescue breaths (optional). The American Heart Association no longer considers rescue breaths necessary for CPR, as the chest compressions are more important. If you are trained in CPR and totally confident, give two rescue breaths after your 30 chest compressions. If you've never done CPR before, or you're trained but rusty, stick with only chest compressions.[4]
Keeping the airway open, take the fingers that were on the forehead and pinch the victim's nose closed. Make a seal with your mouth over the victim's mouth and breathe out for about one second. Make sure you breathe slowly, as this will make sure the air goes in the lungs and not the stomach.
If the breath goes in, you should see the chest slightly rise and also feel it go in. Give a second rescue breath.
If the breath does not go in, re-position the head and try again. If it does not go in again, the victim may be choking. Do abdominal thrusts (the Heimlich maneuver) to remove the obstruction.