Which of the following is placed in the ear drum to drain trapped fluid?
a. endotracheal intubation
b. nasal cannula
c. pressure-equalizing tube
d. cochlear implant
c
Explanation:
a. endotracheal intubation: creates an open upper respiratory airway
b. nasal cannula: is a two-pronged device to deliver oxygen
c. pressure-equalizing tube: correct
d. cochlear implant: is a hearing device surgically placed in the skin behind the ear
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