In the event of a choking adult, what is the first step to take?

In the situation of an adult choking, the correct initial action is to perform abdominal thrusts, commonly known as the Heimlich maneuver. This technique is designed to exert pressure on the diaphragm, creating artificial coughs that may dislodge the obstruction blocking the airway. By utilizing abdominal thrusts, you apply upward pressure that can help expel the object causing the choking, thereby restoring airflow.

Encouraging the person to cough forcefully is also an appropriate action, but it is typically the next step if they are able to breathe and cough on their own. If they are unable to do so or if their condition worsens, immediate intervention through abdominal thrusts is critical. Starting chest compressions is not suitable in this situation unless the person has lost consciousness, as it does not directly address the choking. Laying the person flat on their back is also not advisable in this scenario, as it could potentially worsen the obstruction. Hence, the Heimlich maneuver is the most effective first step.