When should you switch from back blows to abdominal thrusts for a choking child?

The correct answer is that you should switch from back blows to abdominal thrusts after giving 5 back blows. This approach is based on the recommended sequence of actions for dealing with a choking child. Initially, back blows are administered to help dislodge the object blocking the airway. If these 5 back blows do not successfully clear the obstruction and the child is still in distress, it is appropriate to transition to abdominal thrusts, which can exert greater force to expel the object.

This progression is designed to maximize effectiveness while ensuring the safety and well-being of the child. The focus on providing a specific number of back blows before switching to abdominal thrusts helps ensure that sufficient attempts have been made before escalating the intervention.