What should a rescuer perform when using the 1-rescuer method for CPR on an infant?

When performing CPR on an infant using the one-rescuer method, it is critical to follow the guideline of delivering 30 chest compressions for every 2 rescue breaths. This ratio is designed to ensure that the infant receives a sufficient number of compressions to circulate blood effectively while also providing necessary breaths to maintain oxygenation.

The rationale behind the 30:2 ratio is that compressions are vital for maintaining blood flow to the brain and vital organs, especially in cases of cardiac arrest, while rescue breaths restore the oxygen levels in the blood. This method balances the need for both effective circulation and oxygen delivery, maximizing the chances of survival for the infant.

In summary, the choice of 30 compressions followed by 2 breaths is the correct approach in an infant CPR scenario as it is based on established guidelines that optimize the combination of circulatory support and oxygenation during resuscitation efforts.