When using a colorimetric end-tidal carbon dioxide detector, the absence of carbon dioxide in exhaled air after six breaths indicates that the endotracheal tube has been placed:
A) in the right mainstem bronchus.
B) in the esophagus.
C) in the left mainstem bronchus.
D) in the trachea.

Question

Quizplus · Accepted Answer

The absence of carbon dioxide in exhaled air after six breaths when using a colorimetric end-tidal carbon dioxide detector typically indicates that the endotracheal tube has been placed in the esophagus instead of the trachea, as there should be carbon dioxide present in exhaled air if the tube is correctly placed in the trachea.

When Using a Colorimetric End-Tidal Carbon Dioxide Detector, the Absence