Which of the following is true of a Guedel airway?
a. There is no protected central channel.
b. It consists of a hollow central channel.
c. Its length is measured in centimeters.
d. It is identical to a Berman airway.
ANS: B
The Guedel airway has a central channel, is measured in millimeters, and differs from the Berman airway in its cross-sectional profile.
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