If the esophageal lumen of the Combitube enters the trachea, the Combitube:
a. will not secure the airway.
b. must be removed immediately.
c. can be used as an endotracheal tube.
d. must be pulled back to rest in the pharynx.
ANS: C
The small distal lumen of the Combitube usually advances into the esophagus, but in the case of a tracheal entry of the distal lumen, the Combitube can be used as a conventional endotracheal tube. This will secure the airway.
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