Abdominal thrusts, also known as the Heimlich maneuver is a first-aid procedure used to treat upper-airway obstructions by foreign objects.
A rescuer stands behind a choking victim and using the hands to exert pressure on the bottom of the diaphragm.
This compresses the lungs and exerts pressure on the object lodged in the trachea in an effort to expel it.
Most protocols recommend encouraging the victim to cough, followed by hard back slaps, and finally abdominal thrusts or chest thrusts as a final resort.
Also it is recommend alternating between abdominal thrusts and back slaps.
A universal sign of choking has been designated as a silent indication from a person who is unable to breathe, and consists of placing both hands on one’s own throat while trying to attract the attention of others who might help.
Point of application of abdominal thrusts is between the chest and navel.
To perform abdominal thrusts, a rescuer stands behind an upright patient, using the hands to exert forceful pressure on the bottom of the diaphragm.
The pressure amounts to an artificially induced cough.
To assist a larger person, more force may be needed.
If the victim cannot receive pressure on the abdomen in case of pregnancy or excessive obesity, chest thrusts are advised.
Bruising to the abdomen is highly likely and more serious injuries can occur, including fracture of the xiphoid process or ribs.