What is the compression to ventilation ratio in two-man CPR?

In two-man CPR, the compression to ventilation ratio is critical for effective resuscitation. The correct ratio is 15 compressions to 2 ventilations. This means that for every 15 compressions performed, two breaths are given.

This specific ratio is designed to optimize the balance between compressions, which maintain blood flow to vital organs, and ventilations, which provide oxygen to the lungs. The higher number of compressions in relation to ventilations during two-man CPR reflects the need for maintaining circulation, particularly in cases of cardiac arrest where the heart is not pumping effectively.

In contrast, the incorrect options focus on different ratios that do not align with the established guidelines for CPR in a two-rescuer scenario, where the emphasis is on delivering a higher frequency of chest compressions compared to ventilations. Thus, understanding the 15 to 2 ratio is essential for effective practice in emergency medical situations.