Hemlichs maneuver is used for ?

Ans. is 'a' i.e., Upper airway obstruction by foreign body Heimlich manoeuvre Abdominal thrusts, also called the Heimlich manoeuvre or Heimlich maneuver, is a first aid procedure used to treat upper airway obstructions (or choking) by foreign objects. The term Heimlich maneuver is named after Dr. Henry Heimlich, who first described it in 1974.