What is the recommended ratio of compressions to breaths in CPR for adults?

The recommended ratio of compressions to breaths in CPR for adults is 30 compressions to 2 breaths. This standard has been established to ensure a high-quality and efficient method of resuscitating an adult who is experiencing cardiac arrest.

The focus on a 30:2 ratio provides a balance between chest compressions, which are critical for maintaining blood flow to vital organs, and ventilation, which supplies oxygen to the lungs. Compressions should be performed at a depth of about 2 inches at a rate of 100 to 120 compressions per minute. The two breaths that follow the 30 compressions help to provide necessary oxygen, but the emphasis remains on keeping the blood circulating through effective compressions.

This ratio is widely endorsed by major resuscitation organizations, ensuring that first responders and bystanders can easily remember and apply the protocol in emergency situations.