Give two full breaths for one to one and a half seconds. Give six to 10 abdominal thrusts. If the air will not go in, place the heel of one hand against the middle of the victim's abdomen. Place the other hand on top of the first hand. Press into the abdomen with quick upward thrusts.
Repeat steps six through nine until the airway is cleared or the ambulance arrives.
With the heel of the rescuer's hand, administer five rapid back blows between the victim's shoulder blades. If the obstruction remains, turn the victim face up and rest on a firm surface. Deliver five rapid thrusts over the breastbone using two fingers. Repeat the above steps as necessary. If the obstruction cannot be removed, call for medical help immediately.