The moment you are already in
They are grabbing their throat. Or they are not grabbing anything because they cannot move their arms. Their face is going red, then a color that has no good name. They are not coughing. They are trying to cough and nothing is coming out. That silence is the signal.
The first thing you need to know is the difference between a partial obstruction and a full one. It changes everything you do next.
If they can cough forcefully, speak, or make any strong sound: Stand close. Watch. Do not hit them on the back, do not reach into their mouth. A body that can still cough is a body that is still working. Let it work. Encourage them to keep coughing. Stay present.
If they cannot cough, cannot speak, or are producing only a high-pitched wheeze or nothing at all: That is a full obstruction. That is when you move.
The protocol for adults and children over one year
Stand behind the person. Get close enough that your body is in contact with theirs. Plant your feet. This is not a gentle gesture. It is a mechanical intervention, and your own stability determines how much force you can generate.
- 1Lean them slightly forward. Support their chest with one hand. With the heel of your other hand, deliver five firm blows to the center of their upper back, between the shoulder blades. Aim with intention. These are not pats.
- 2Move immediately to abdominal thrusts. Make a fist with one hand. Place the thumb side against their abdomen, just above the navel and well below the breastbone. Wrap your other hand around the fist.
- 3Drive inward and upward in one sharp motion. Five times. The direction is toward the back of their ribcage and up, not straight back.
- 4Repeat the cycle. Five back blows, five abdominal thrusts. Continue until the object is expelled, until they can breathe and speak, or until they lose consciousness.
- 5If they lose consciousness, lower them to the ground carefully, call 911 if not already done, and begin CPR. With each set of compressions, look inside the mouth before giving breaths. If you see an object, remove it. Do not perform blind finger sweeps.
The body remembers what you practiced. It has no memory of what you only read.
For a conscious choking adult or child over 1 year of age, give 5 back blows and 5 abdominal thrusts, alternating until the object is dislodged or the person becomes unconscious.
Infants under one year: a different protocol entirely
An infant's airway is the width of your smallest finger. Abdominal thrusts on a body that small cause internal injury. The protocol is different, and it matters that you know this before you are holding a choking four-month-old.
- 1Hold the infant face-down along your forearm. Support the head. The head must be lower than the chest. Use your thigh or knee for extra support if needed.
- 2With the heel of your free hand, deliver five back blows between the shoulder blades. Firm. Controlled. Not soft.
- 3Flip the infant face-up along your other forearm, still supporting the head below the chest. Place two fingers on the center of the chest, just below the nipple line.
- 4Give five chest thrusts. Press down about one and a half inches, one thrust per second.
- 5Alternate five back blows and five chest thrusts. After each cycle, look in the mouth. If you see the object, remove it. If the infant stops breathing or loses consciousness, begin infant CPR and call 911.
When abdominal thrusts are not possible
Abdominal thrusts are not appropriate for someone in late pregnancy or for someone whose size makes it impossible to get your arms around their abdomen effectively. In those situations, chest thrusts replace them.
Stand behind the person. Place the thumb side of your fist against the center of their sternum, between the nipples. Wrap your other hand around the fist. Pull straight back with sharp, firm thrusts. Five times. Then five back blows. Repeat.
If the person is obese or in the late stages of pregnancy, use chest thrusts instead of abdominal thrusts.
Test Your Response
You are eating dinner at a restaurant when the person at the next table suddenly stands up, clutching their throat with both hands. Their face is turning red and they cannot speak or cough. Their dining companion looks panicked and is yelling for help. What do you do first?
Be honest. No one's watching.
When you are the one choking
You are alone. Nothing is coming out. Your vision is narrowing at the edges. You have less than two minutes before the loss of consciousness, possibly less.
- 1Make a fist. Place it above your navel, below your breastbone. Drive it inward and upward. Repeat. Hard.
- 2Find a hard edge. The back of a chair, a countertop, a railing. Place it just above your navel. Throw your weight against it, angling the force inward and upward. Use your entire body.
Call 911 before you lose the ability to speak. Even if you cannot speak, a 911 operator who hears nothing will dispatch help. The call matters.
Where people go wrong
The most common mistake is hesitation dressed as assessment. Standing close, watching, wondering whether it is serious enough. With a full obstruction, the window between consciousness and unconsciousness is measured in minutes, not in the time it takes to feel certain.
The second mistake is force calibration. Back blows that land like reassuring pats. Abdominal thrusts that are more of a squeeze than a thrust. The technique only works if the force is real. You are trying to create a pressure spike strong enough to dislodge a physical object from an airway. That requires intention.
The third mistake is placement. Hands too high on the sternum during abdominal thrusts, which means the force goes into the ribcage instead of the diaphragm. Hands on the lower spine during back blows, instead of between the shoulder blades. Placement and force together are the protocol. One without the other is not.
The fourth: stopping too soon. One round feels like a lot when you are terrified. The protocol is continuous until the object clears or the person is unconscious. Keep going.
The gap between knowing and doing is physical. It lives in the body, not the mind. People who have practiced the motion, even once, on a mannequin, in a class, in a kitchen with a willing partner, perform it faster and with better force than people who have only read about it. That is not an opinion. That is what the hands remember.
The American Red Cross [1] and the American Heart Association [2] both recommend hands-on training as the standard for choking response, not because the steps are complicated, but because the body needs to have done the motion before the moment it is needed.
The person who helped someone choke and walked away did not feel ready. They just did not wait until they did.