EtCO2 normal range is:

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Multiple Choice

EtCO2 normal range is:

Explanation:
EtCO2 represents the CO2 level at the end of an exhaled breath and mirrors how well we are ventilating to remove CO2. In a healthy adult, the end-tidal CO2 is normally about 35-45 mmHg because it reflects effective alveolar ventilation and CO2 elimination. This range is used as the baseline for normal ventilation; values outside it indicate ventilation problems—higher suggests hypoventilation or CO2 retention, lower suggests hyperventilation or other issues with CO2 delivery. The other numbers correspond to no CO2 being detected or markedly elevated CO2, which would signal abnormal ventilation or measurement problems, so they aren’t considered the normal range.

EtCO2 represents the CO2 level at the end of an exhaled breath and mirrors how well we are ventilating to remove CO2. In a healthy adult, the end-tidal CO2 is normally about 35-45 mmHg because it reflects effective alveolar ventilation and CO2 elimination. This range is used as the baseline for normal ventilation; values outside it indicate ventilation problems—higher suggests hypoventilation or CO2 retention, lower suggests hyperventilation or other issues with CO2 delivery. The other numbers correspond to no CO2 being detected or markedly elevated CO2, which would signal abnormal ventilation or measurement problems, so they aren’t considered the normal range.

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