For a child, what is the recommended compression-to-ventilation ratio during CPR?

The recommended compression-to-ventilation ratio during cardiopulmonary resuscitation (CPR) for a child is specifically designed to optimize the effectiveness of the ventilation and compressions being delivered. For a single rescuer, the ratio is 30 compressions followed by 2 breaths, and for two rescuers, the ratio changes to 15 compressions followed by 2 breaths.

This difference is important because with two rescuers, the emphasis can be placed on more frequent changes in the cycle of compressions and ventilations, which allows for higher quality compressions without compromising the crucial oxygenation provided through the breaths. The 15:2 ratio ensures that while compressions are vital for maintaining blood flow to vital organs, the ventilation is also prioritized to address the child's need for oxygen, particularly given the respiratory nature of many pediatric cardiac arrests.

The other ratios presented do not align with the guidelines set forth for pediatric CPR, which is why they are not considered the recommended approach. Using the correct ratios is essential for effective resuscitation and ultimately impacts the chances of survival and recovery for the child.