Final answer:
To clear the airway of an unconscious person who is choking, perform the Heimlich maneuver instead of abdominal thrusts.
Step-by-step explanation:
When someone is unconscious and choking, it is important to perform the Heimlich maneuver to clear the airway. Instead of abdominal thrusts, the Heimlich maneuver involves placing your hands just above the person's navel and applying inward and upward pressure until the object blocking the airway is dislodged.