What is considered a normal EtCO2 level?

A normal end-tidal carbon dioxide (EtCO2) level typically ranges from 35 to 45 mmHg. This range is important as it reflects the patient's ventilatory status and can indicate how well carbon dioxide is being eliminated from the body. In healthy individuals, a value within this range suggests adequate respiratory function and effective gas exchange in the lungs.

When levels are outside of this range, they can indicate potential respiratory issues; for instance, values below 35 mmHg may suggest hyperventilation or conditions causing increased respiratory rate, while values above 45 mmHg can indicate hypoventilation or obstructive conditions where carbon dioxide is not being expelled effectively. Therefore, recognizing 35-45 mmHg as the normal range is critical for assessing a patient’s respiratory function and ensuring timely interventions when necessary.