If the choking person is obese or pregnant, place your fist on the middle of her breastbone to do your thrusts. Do not place your fist on her ribs or the edge of her breastbone.

If the person becomes unconscious, lower him to the ground, and send or call out for help. If you are sure he has no head or neck injuries, turn the person on his back. Open his mouth by holding his jaw with your fingers and lifting up. Do a finger sweep. Open his airway and breathe in. If his chest is not rising when you give mouth to mouth resuscitation, you will have to give him abdominal thrusts. Place the heel of one of your hands against the middle of his abdomen, above his belly button and below his ribs. Give 5 quick thrusts, inward and upward. Sweep his mouth to see if the object is out. Try to give him 2 breaths. If unable to give breaths and if his chest still does not rise, give abdominal thrusts again. Continue this pattern until the object is out. If the object is out, and he is still not breathing, start CPR if you are trained and know how to do it.