Cardiopulmonary Resuscitation (CPR) Practice 2026 - Free CPR Practice Questions and Study Tips.

The correct answer addresses the importance of end-tidal carbon dioxide (ETCO2) monitoring during resuscitation efforts. ETCO2 is a measure of the concentration of carbon dioxide in exhaled air, which provides critical information about the metabolic activity of the body and the effectiveness of ventilation.

When an endotracheal tube (ET tube) is placed during resuscitation, one of the key concerns is ensuring that it is correctly positioned in the trachea and not in the esophagus. The presence of CO2 in exhaled breath indicates that air is reaching the lungs, confirming proper intubation. Additionally, monitoring ETCO2 levels helps assess ventilation adequacy; a sudden increase in ETCO2 during resuscitation suggests that the chest compressions are effectively promoting blood flow and that the lungs are being ventilated properly.

While other parameters, such as heart rate stability, patient responsiveness, and blood pressure levels, are also important during resuscitation, they do not specifically verify the correct placement of an ET tube or the effectiveness of ventilation in the same direct and immediate way that ETCO2 does. This makes monitoring ETCO2 a vital tool in guiding resuscitation efforts and ensuring that critical interventions are being performed effectively