the common respiratory arrest definition is the cessation of breathing. Respiratory arrest is usually the endpoint of respiratory distress that leads to respiratory failure. Respiratory distress and failure have multiple causes, all of which, if left untreated, can deteriorate into respiratory arrest.
You are doing CPR on a child when someone else arrives with the AED. The AED doesn't have child pads. <em>You should use the adult pads, making sure they do not touch each other.</em>