What is the compression-to-breath ratio during CPR?

• A. 15 to 1
• B. 20 to 2
• C. 30 to 2
• D. 40 to 1

Answer: (C)

The compression-to-breath ratio during CPR for adults is 30 to 2, meaning that for every 30 chest compressions delivered, 2 rescue breaths are given. This ratio is recommended to ensure effective circulation and ventilation. The emphasis is placed on performing high-quality chest compressions, as they are critical in maintaining blood flow to vital organs. The 30 to 2 ratio simplifies the process for responders, making it easier to remember and execute during a high-stress emergency situation.

The approach has been standardized in guidelines from organizations such as the American Heart Association, reflecting extensive research on what is most effective in increasing survival rates during cardiac arrest. This ratio helps in striking a balance between providing adequate oxygenation through rescue breaths and maintaining sufficient chest compressions to circulate blood.