After an intubation attempt, an expired capnogram indicates a CO2 level near zero. What does this finding probably indicate?
a. Abnormally high ventilation/perfusion ra-tio ()
b. Placement of the endotracheal tube in the esophagus
c. Placement of the endotracheal tube in the trachea
d. Failure of the cuff to properly seal the airway
Question 2
When using a bulb-type esophageal detection device (EDD) during an intubation attempt, how do you know that the endotracheal tube is in the esophagus?
a. The bulb fails to reexpand upon release.
b. The bulb quickly reexpands upon release.
c. The bulb cannot be completely squeezed closed.
d. The bulb cannot be attached to the endo-tracheal tube.