For children aged 1 to puberty, how should you modify your approach to CPR?

For children aged 1 to puberty, using one hand for chest compressions is the appropriate modification to your CPR technique. This age group may not require the same level of force that is needed for adults, and using one hand allows for effective compressions while maintaining proper technique. It also reduces the risk of injury to the child's ribcage.

Using one hand can deliver adequate depth and rate of compressions, which is critical for maintaining circulation and oxygenation during a cardiac arrest. Additionally, this technique translates well, as it enables the rescuer to adjust their force based on the size and condition of the child, ensuring that the compressions are effective without causing harm.

In contrast, using two hands might be excessive for many children in this age range, especially for smaller children who could be injured by the increased force. Resorting solely to rescue breaths could be ineffective in situations requiring circulation support, and assuming no modifications are needed would not take into account the specific anatomical and physiological differences present in this age group.