How many methods of relief should be alternated when assisting someone who is completely choking?

When assisting someone who is completely choking, it is important to alternate between two methods of relief: back blows and abdominal thrusts (also known as the Heimlich maneuver). This dual approach can be more effective in dislodging the obstruction that is blocking the airway.

Back blows involve delivering firm blows between the person's shoulder blades using the heel of your hand. This technique can help create pressure that may dislodge the object. If back blows prove ineffective, abdominal thrusts can be used, wherein you make a fist just above the person’s navel and thrust inward and upward. The force generated by this method can help to expel the object causing the choking.

Alternating between these two methods maximizes the chance of successfully clearing the blockage while minimizing the risk of injury. Relying on a single method may not provide the necessary effectiveness in all situations. Therefore, it is critical to understand that using both techniques in a systematic manner is essential for successfully aiding someone who is choking.