How should ventilation be provided during cardiopulmonary resuscitation (CPR)?

During cardiopulmonary resuscitation (CPR), the correct protocol for providing ventilation is to deliver rescue breaths after every 30 chest compressions. This ratio is established based on guidelines to optimize the chances of restoring a heart rhythm and improving the likelihood of survival.

The 30:2 ratio, which signifies 30 compressions followed by 2 rescue breaths, is designed to maintain circulation while also providing adequate oxygenation. This balance is crucial because, during cardiac arrest, the patient is not breathing, and effective ventilation must be integrated seamlessly with the chest compressions to sustain blood flow and oxygen delivery to vital organs.

It's essential to emphasize the importance of high-quality chest compressions and minimize interruptions in them. Ventilations should be performed quickly but effectively, ensuring that they are delivered in a way that limits the time without compressions. This makes the 30 compressions followed by 2 ventilations a well-supported method in current resuscitation guidelines.