When should a rescuer provide rescue breaths to a child?

Providing rescue breaths to a child after every 30 compressions aligns with the recommended protocols for CPR. In cases of cardiac arrest, high-quality chest compressions are crucial for maintaining blood flow to vital organs, especially the heart and brain. However, performing rescue breaths is essential for ensuring that the child receives the necessary oxygenation, particularly in scenarios where the arrest may be due to respiratory failure or a drowning incident.

The CPR sequence for children typically consists of a cycle of 30 chest compressions followed by 2 rescue breaths. This pattern helps to maximize the effectiveness of resuscitation efforts, as it balances the need for chest compressions to maintain cardiac output with the crucial need for oxygen delivery through rescue breaths.

This combination aims to restore both circulation and breathing, facilitating the best chance of recovery. The other options do not follow the recommended cadence for providing rescue breaths, thus deviating from established CPR guidelines.