In a round of CPR, what is the correct ratio of compressions to breaths?

The correct ratio of compressions to breaths during CPR for adults is 30 compressions to 2 breaths. This ratio is established to maximize the effectiveness of chest compressions, which are crucial for maintaining blood circulation when the heart is not beating effectively.

During CPR, the primary focus is on providing high-quality chest compressions at a rate of 100 to 120 compressions per minute, as this helps maintain blood flow to vital organs. After every 30 compressions, rescue breaths are given to provide oxygen to the lungs. This method has been found to be the most effective in helping to revive someone in cardiac arrest.

Maintaining this ratio allows the rescuer to efficiently deliver the necessary compressions and breaths, optimizing the chances of survival until emergency medical services arrive. Other ratios, such as 15-2 or 20-1, are not recommended for adult CPR and may lead to ineffective treatment or potential delays in response time, emphasizing the importance of adhering to the 30-2 guideline.