What might a high level of end-tidal CO2 indicate?

A high level of end-tidal CO2 typically indicates hypoventilation or inadequate ventilatory support. When there is insufficient breathing, carbon dioxide isn't effectively expelled from the body, leading to its accumulation. This can occur in various situations, such as respiratory distress, certain medical conditions, or when ventilation is not sufficient for the patient’s metabolic needs.

In contrast, adequate ventilation would allow CO2 levels to remain within a normal range, while disorders like obstructive sleep apnea would manifest differently, often leading to intermittent periods of hypoventilation and resulting in varying end-tidal CO2 readings. Understanding the significance of end-tidal CO2 levels is crucial for assessing a patient’s respiratory status and guiding appropriate interventions.