Final answer:
To treat someone who is choking, encourage them to cough, deliver hard back blows, or perform the Heimlich maneuver. For infants, back slaps while holding them upside down may work. Remember to seek medical help if the person becomes unconscious.
Step-by-step explanation:
Steps to Treat Choking
When treating someone who is choking, initially encourage the person to cough. If that fails, deliver a few hard back blows to help dislodge the object from their airway. For infants, carefully turn the baby upside down and give back slaps. If the obstruction persists, perform the Heimlich maneuver. However, if the person becomes unconscious, immediate medical intervention is necessary.
When administering aid, ensure you know the proper techniques to avoid causing harm. For example, to force air into an unconscious person's lungs, a certain force on the balloon is required; this is explained through the physics of gauge pressure. Lastly, in situations such as drowning, remember to remove the person from the water before attempting CPR.