Identify the correct ratio of compressions to breaths for adult CPR.

• A. 15 compressions to 2 breaths
• B. 30 compressions to 2 breaths
• C. 30 compressions to 5 breaths
• D. 15 compressions to 5 breaths

Answer: (B)

The correct ratio of compressions to breaths for adult CPR is 30 compressions followed by 2 breaths. This ratio is part of the current guidelines provided by organizations such as the American Heart Association. The rationale for choosing this specific ratio is based on the need to deliver high-quality chest compressions, which are critical for maintaining blood flow to vital organs during cardiac arrest.

By performing 30 compressions before providing 2 rescue breaths, the responder can maximize the effectiveness of the compressions to circulate oxygenated blood, enhancing the chances of revival. This sequence allows for a swift return to compressions, which is essential because continuous compressions help maintain circulation better than longer pauses for breaths.

Overall, this method aims to balance the need for oxygenation through rescue breaths with the necessity of maintaining blood circulation through effective compressions, emphasizing the importance of high-quality CPR in increasing the likelihood of survival in cardiac emergencies.