Monitoring CO2 levels helps determine when to stop and when to continue CPR efforts May 18, 2011Dr. Barry Dworkin Madely Health Headlines Commentary for May 18, 2011 [display_podcast] Source: 96 Minutes Without a Heartbeat Related posts: New variation in CPR can improve survival outcome Chest-compression CPR produces better survival outcomes Doubling up on CPR saves lives Stroke recognition and access to aftercare and rehab not optimal capnographCPR