The main difference in CPR for an unresponsive adult choking victim is that the emphasis is placed on chest compressions rather than rescue breathing. This modified approach to CPR maintains circulation and oxygen delivery, while waiting for the obstruction to be cleared or professional help arrives.
Before you begin CPR, pat or shake the person’s shoulders and shout loudly, “Are you okay?” If they respond or open their eyes, check to see if there is anything in their mouth that could block their airway. If they’re unresponsive, gently lay them on the ground and start CPR.
Position yourself directly behind the person. Place the heel of one hand on the center of the person’s chest and the fingertips of the other hand over it, interlocking your fingers. Use your chest to compress the person’s sternum, keeping the pressure on for at least 2-2.4 inches (5 centimeters). Completely recoil the chest between each compression and don’t lift your hands off their chest.
If you’re trained in CPR, pause the chest compressions to deliver two mouth-to-mouth rescue breaths. Observe for chest rise, which indicates that air is entering the person’s lungs. Also watch for color improvement, which is an indication that oxygenation is improving. If these signs don’t occur, continue to provide CPR using the chest-only technique described above until the person revives or professional help arrives.