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 2
The primary muscle of ventilation is the:
A) diaphragm. B) intercostal muscle.
C) sternocleidomastoid . D) abdominal muscle.