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Heimlich maneuver an emergency technique used to save a person choking on something, such as food. One must stand behind the person choking and wrap one's arms around the person, just below the rib cage. One then presses hard in an upward movement to force air from the lungs. The rush of air should eject the object.
Valsalva maneuver forced breathing out with the mouth and nose closed, so as to restore normal pressure in the ears.