What is the correct compression-to-ventilation ratio during adult CPR?

The correct compression-to-ventilation ratio during adult CPR is 30:2. This guideline is based on the recommendations from organizations such as the American Heart Association. In adult CPR, the rescuer should perform 30 chest compressions followed by 2 rescue breaths. This sequence allows for effective circulation of blood and oxygenation of the patient, aiding in the resuscitation process.

The 30:2 ratio is designed to maximize the delivery of compressions, which maintain blood flow to vital organs while ensuring that oxygen is provided to the lungs intermittently. Providing chest compressions at this rate is critical, as it helps to create sufficient pressure in the thoracic cavity to push blood out of the heart and into circulation.

While the other options suggest different ratios, they do not align with current CPR guidelines for adults. The established 30:2 ratio is supported by research that shows it enhances the chances of survival in cardiac arrest situations. It’s important for healthcare providers and bystanders to understand and follow this ratio for effective adult CPR.