In a patient with an endotracheal tube in place, what end-tidal CO2 range indicates adequate ventilation?

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Multiple Choice

In a patient with an endotracheal tube in place, what end-tidal CO2 range indicates adequate ventilation?

End-tidal CO2 shows how well ventilation is removing CO2 in an intubated patient. A normal capnography range is about 35-45 mmHg, which mirrors adequate alveolar ventilation and CO2 clearance. Values within this range indicate ventilation is on target. Very low values (like 25-30 or lower) suggest over-ventilation or reduced CO2 delivery due to factors such as disruption or poor perfusion, while very high values (60-70) point to CO2 retention from hypoventilation. In short, 35-45 mmHg is the range that signals adequate ventilation with an endotracheal tube in place.

End-tidal CO2 shows how well ventilation is removing CO2 in an intubated patient. A normal capnography range is about 35-45 mmHg, which mirrors adequate alveolar ventilation and CO2 clearance. Values within this range indicate ventilation is on target. Very low values (like 25-30 or lower) suggest over-ventilation or reduced CO2 delivery due to factors such as disruption or poor perfusion, while very high values (60-70) point to CO2 retention from hypoventilation. In short, 35-45 mmHg is the range that signals adequate ventilation with an endotracheal tube in place.

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