Abdominal Thrust is a technique that involves applying a series of thrusts to the upper abdomen to force air out of a choking casualty's lungs. How do you perform this technique?

Option D: Stand behind the casualty. Clench your fist with the thumb inwards in the center of the upper abdomen. Grasp your fist with your other hand and pull quickly inwards

The Abdominal Thrust (Heimlich maneuver) is performed by placing a fist between the navel and the sternum and delivering quick, inward and upward thrusts to create an artificial cough and dislodge an airway obstruction.