Chest Thrusts
Chest thrusts help clear a blocked airway by applying quick pressure to the chest when back blows don't work.
Chest thrusts are a key first aid manoeuvre used to clear a completely blocked airway in someone who is choking and unable to breathe. They are usually performed after back blows have failed to remove the obstruction. The force created by a chest thrust increases pressure in the chest and airway, which can help force the object out. Each thrust should be quick and forceful, directed inwards towards the spine.
For infants under 1 year, chest thrusts are given with two fingers on the breastbone while the infant lies face-up along the rescuer’s forearm, with the head lower than the chest. Up to five chest thrusts are given, alternating with back blows if the airway remains obstructed.
If the person becomes unresponsive at any stage, begin CPR immediately and call 000. Avoid abdominal thrusts (Heimlich manoeuvre), as they are not recommended in Australia due to the risk of internal injury.
Chest thrusts are an important part of managing severe choking and can be life-saving when used promptly and correctly.
Inability to breathe, speak, or cough
Clutching the throat
Silent or high-pitched breathing
Blue lips or skin (cyanosis)
Sudden collapse or unresponsiveness
Support the person's back.
Place the heel of your hand onto the lower part of the sternum.
Give up to 5 quick inward thrusts.
Alternate with back blows and call 000 if the airway remains blocked.
Chest thrusts are a first aid technique used to treat severe choking when back blows fail. They create pressure in the chest to help expel an object blocking the airway.