Choking is when someone is having a very hard time breathing because food, a toy, or other object is blocking the throat or windpipe (airway).
A choking person's airway may be blocked so that not enough oxygen reaches the lungs. Without oxygen, brain damage can occur in as little as 4 to 6 minutes. Rapid first aid for choking can save a person's life.
Choking can be caused by any of the following:
- Eating too fast, not chewing food well, or eating with dentures that do not fit well
- Drinking alcohol (even a small amount of alcohol affects awareness)
- Being unconscious and breathing in vomit
- Breathing in small objects (young children)
- Injury to the head and face (for example, swelling, bleeding, or a deformity can cause choking)
- Swallowing problems after a stroke
- Enlarging tonsils or tumors of the neck and throat
- Problems with the esophagus (food pipe or swallowing tube)
When an older child or adult is choking, they will often grab their throat with the hand. If the person does not do this, look for these danger signs:
- Inability to speak
- Difficulty breathing
- Noisy breathing or high-pitched sounds while inhaling
- Weak, ineffective coughing
- Bluish skin color
- Loss of consciousness if blockage is not cleared
First ask, "Are you choking? Can you speak?" DO NOT perform first aid if the person is coughing forcefully and is able to speak. A strong cough can dislodge the object. Encourage the person to keep coughing to dislodge the object.
If the person cannot speak or is having a hard time breathing, you need to act fast to help the person. You can perform abdominal thrusts, back blows, or both.
To perform abdominal thrusts (Heimlich maneuver):
- Stand behind the person and wrap your arms around the person's waist. For a child, you may have to kneel.
- Make a fist with one hand. Place the thumb side of your fist just above the person's navel, well below the breastbone.
- Grasp the fist tightly with your other hand.
- Make a quick, upward and inward thrust with your fist.
- Check if the object is dislodged.
- Continue these thrusts until the object is dislodged or the person loses consciousness (see below).
To perform back blows:
- Stand behind the person. For child, you may have to kneel.
- Wrap one arm around to support the person's upper body. Lean the person forward until the chest is about parallel to the ground.
- Use the heel of your other hand to deliver a firm blow between the person’s shoulder blades.
- Check if the object is dislodged.
- Continue back blows until the object is dislodged or the person loses consciousness (see below).
To perform abdominal thrusts AND back blows (5-and-5 approach):
- Give 5 back blows, as described above.
- If the object is not dislodged, give 5 abdominal thrusts.
- Keep performing the 5-and-5 until the object is dislodged or the person loses consciousness (see below).
IF THE PERSON FAINTS OR LOSES CONSCIOUSNESS
- Lower the person to the floor.
- Call 911 or the local emergency number or tell someone else to do so.
- Begin CPR. Chest compressions may help dislodge the object.
- If you see something blocking the airway and it is loose, try to remove it. If the object is lodged in the person's throat, do NOT try to grasp it. This can push the object farther into the airway.
FOR PREGNANT OR OBESE PEOPLE
- Wrap your arms around the person's CHEST.
- Place your fist on the MIDDLE of the breastbone between the nipples.
- Make firm, backward thrusts.
After removing the object that caused the choking, keep the person still and get medical help. Anyone who is choking should have a medical examination. Complications can occur not only from the choking, but also from the first aid measures that were taken.
- DO NOT interfere if the person is coughing forcefully, is able to speak, or is able to breathe in and out adequately. But, be ready to act right away if the person's symptoms get worse.
- DO NOT force open the person's mouth to try to grasp and pull out the object if the person is conscious. Perform abdominal thrusts and/or back blows to try to expel the object.
When to Contact a Medical Professional
Seek medical help right away if you find someone unconscious.
When the person is choking:
- Tell someone to call 911 or the local emergency number while you begin first aid/CPR.
- If you are alone, shout for help and begin first aid/CPR.
After the object is successfully dislodged, the person should see a doctor because complications can arise.
In the days following a choking episode, contact a doctor right away if the person develops:
- A cough that does not go away
- Pneumonia and fever
- Shortness of breath
These could be signs that the object entered the lung instead of being expelled.
To prevent choking:
- Eat slowly and chew food thoroughly.
- Make sure dentures fit properly.
- Do not drink too much alcohol before or during eating.
- Keep small objects away from young children.
Abdominal thrusts - adult or child over 1 year; Heimlich maneuver - adult or child over 1 year: Choking - back blows - adult or child over 1 year
Cukor J, Manno M. Pediatric respiratory emergencies. In: Marx J, Hockberger RS, Walls RM, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 168.
Donoghue AJ, Berg RA, Nadkarni V. Pediatric resuscitation. In: Marx J, Hockberger RS, Walls RM, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 10.
Thomas SH, Goodloe JM. Foreign Bodies. In: Marx J, Hockberger RS, Walls RM, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 60.
Ward KR, Kurz MC, Neumar RW. Adult Resuscitation. In: Marx J, Hockberger RS, Walls RM, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 9.
Review Date 4/12/2015
Updated by: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.