End-tidal colorimetric capnography measures:
A) carbon dioxide in exhaled air.
B) the partial pressure of carbon dioxide in arterial blood.
C) the amount of carbon dioxide dissolved in plasma.
D) the percentage of hemoglobin saturated with carbon dioxide.

Question

Quizplus · Accepted Answer

End-tidal colorimetric capnography measures the concentration or partial pressure of carbon dioxide in exhaled air, providing information on the adequacy of ventilation and the presence of potential respiratory pathology such as hypoventilation, hyperventilation or airway obstruction. It is not measuring the partial pressure of carbon dioxide in arterial blood, the amount of carbon dioxide dissolved in plasma or the percentage of hemoglobin saturated with carbon dioxide.

End-Tidal Colorimetric Capnography Measures