The pneumatic attachment for the otoscope is used to evaluate:
a. ear canal patency.
b. eardrum landmarks.
c. hearing acuity.
d. tympanic membrane movement.
D
The pneumatic attachment on the otoscope produces a puff of air directed to the tympanic mem-brane, resulting in its movement. The pneumatic attachment for the otoscope is not used to eva-luate ear canal patency, eardrum landmarks, or hearing acuity. Ear canal patency is assessed by visually inspecting the ear. Hearing acuity is assessed by the whisper test.
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