Standing Abdominal Thrust -
1. Stand behind the victim and wrap your arms around the victim's waist.
2. Grasp your wrist and place the thumb side of your fist against the victim's abdomen, above the navel and just below the rib cage.
3. Give four quick upward thrusts to the victim. The obstruction should pop out like a champagne cork. If unsuccessful, repeat until the obstruction is dislodged.
Reclining Abdominal Thrust -
1. Position yourself for the thrust by either straddling the victim at the hips, straddling one leg, or kneeling at the victim's hips.
2. Place your hands one on top of the other in the area between the lower end of the sternum and the navel, and give four quick upward thrusts into the abdomen.
Standing Chest Thrust -
1. Bring your arms under the arms of the victim and encircle the lower chest.
2. Grasp your wrist, keeping the thumb side close to the victim's chest. (Keep your fist on the middle, not the lower part, of the sternum.)
3. Press the chest with a sharp, backward thrust.