What action is prioritized when performing CPR on an infant?

When performing CPR on an infant, the prioritized action is to perform chest compressions. This approach is grounded in the necessity to quickly restore blood circulation to vital organs. In infants, the most common cause of cardiac arrest is often a result of respiratory issues, leading to the heart not receiving enough oxygen. Therefore, initiating chest compressions helps to maintain blood flow and oxygenation of critical areas such as the brain and heart, which can significantly affect outcomes.

While verifying breathing is essential, it is often recommended to begin chest compressions immediately in cases of cardiac arrest, especially if the infant is unresponsive. Administering back blows may be relevant in choking situations but is not a priority in CPR itself. Although asking for help is an important step in emergency response, immediate action to sustain circulation is essential in critical scenarios, particularly for an infant. Thus, executing chest compressions first is the most effective way to address life-threatening situations quickly and appropriately.