During CPR, what is the recommended compression to ventilation ratio for adults?

The recommended compression to ventilation ratio for adults during CPR is 30:2. This approach is grounded in evidence-based guidelines aimed at maximizing the effectiveness of cardiopulmonary resuscitation. The 30:2 ratio indicates that for every 30 chest compressions, two rescue breaths should be delivered. This balance is critical, as it ensures that the vital factors of blood circulation and oxygenation are addressed effectively.

Chest compressions are essential for maintaining blood flow to vital organs, while rescue breaths provide the necessary oxygen that is often lacking in a patient who has stopped breathing. Research supports this specific ratio as being the most effective for increasing the chances of survival in a cardiac arrest situation.

In contrast, other ratios such as 15:2, 10:1, and 20:2 do not align with the current guidelines and may lead to suboptimal outcomes by either compromising the quality of blood circulation or the provision of adequate ventilation. The focus on a higher number of compressions in the 30:2 ratio reflects a shift in CPR practices towards prioritizing chest compressions, as they have been shown to be crucial during the first few minutes of a resuscitation attempt.