Lifeguarding Practice Test – Complete Exam Preparation

In two-rescuer CPR for an infant, the cycle of chest compressions and ventilations is structured to ensure effective resuscitation while minimizing interruptions to circulation. The correct sequence is 15 chest compressions followed by 2 ventilations. This ratio allows for sufficient blood flow during compressions, which is critical, especially in an infant whose cardiovascular system is more vulnerable compared to older children or adults.

By using 15 compressions to 2 ventilations, rescuers maintain a balance that maximizes oxygen delivery and blood circulation while allowing for adequate time to provide breaths that can help oxygenate the infant’s blood. This specific cycle is also aligned with the recommendations from authoritative health organizations.

In contrast, options that suggest different numbers of compressions or ventilations do not match the established protocols. A higher number of compressions without sufficient breaths could lead to inadequate ventilation, whereas a lower number of compressions could compromise the effectiveness of circulation during resuscitation. It's vital for rescuers to adhere to these guidelines to enhance the chances of a successful outcome.