What is the target end-tidal CO2 for effective CPR?

The target end-tidal CO2 for effective CPR is indicated to be within the range of 30-40 mmHg. During high-quality CPR, adequate perfusion and ventilation should ideally maintain end-tidal CO2 levels that reflect effective chest compressions and the circulatory status of the patient. When end-tidal CO2 levels fall significantly below this target, it may suggest inadequate compressions, compromised circulation, or a lack of effective ventilation. A level of 10-20 mmHg would typically indicate poor quality CPR, suggesting that the efforts may not be effectively delivering oxygen to the tissues or returning circulation to the heart. Thus, maintaining end-tidal CO2 levels of 30-40 mmHg can help ensure that CPR is effective and that the patient is receiving some level of perfusion during cardiac arrest.