What technique is used to assist a choking victim by clearing their air passageway?

The Heimlich maneuver is a first aid technique specifically designed to assist a choking victim by helping to clear their airway. When a person is choking, their airway becomes obstructed, preventing them from breathing properly. The Heimlich maneuver involves applying a quick inward and upward thrust just above the navel area. This sudden pressure can create a force that helps expel the object causing the obstruction, allowing the person to breathe again.

In contrast, the other options relate to different aspects of emergency response. Compression release refers to techniques that may be used in different scenarios, such as CPR, but it is not specific to choking. Rescue removal could imply movements to extract someone from a dangerous situation but does not focus on addressing airway obstruction. Lastly, rescue breathing is a technique used to provide breaths to someone who is not breathing, but it does not address the immediate need to clear an obstructed airway. Thus, the Heimlich maneuver is the most effective and appropriate technique for dealing with choking victims.