APLS High quality chest compressions are achieved when the ETCO2 value is at least 10-20 mmHg. When ROSC occurs, There will be a significant increase in the ETCO2. (35-45 mmHg) This increase represents a drastic improvement in blood flow (more CO2 being dumped in the lungs by the circulation) which indicates circulation.

High quality chest compressions are achieved when the ETCO2 value is at least 10-20 mmHg. When ROSC occurs, There will be a significant increase in the ETCO2. (35-45 mmHg) This increase represents a drastic improvement in blood flow (more CO2 being dumped in the lungs by the circulation) which indicates circulation.