Otology Flashcards
Common presenting symptoms
Hearing loss, tinnitus, vertigo, otalgia, otorrhea, facial weakness
Types of hearing loss
Conductive: outer or middle ear issue.
Sensory/neuro: inner ear canal not working.
otoscopy
involves looking into ear w/otoscope or auriscope to examine external ear canal
microscopy
Allows doctor to view patient’s ear magnified and in 3 dimensions. Also allows for suction and/or removal of things from external ear canal.
Rinne’s test purpose and procedure
Tests for conductive and sensory hearing loss. Tuning fork is placed on mastoid process behind ear and in front of ear to test sound conduction on bone and in air in front of the ear.
Bell’s palsy presentation and mgmt
Clinical features: lower motor neuron facial palsy (forehead involved).
Management: treat underlying cause, steroids, eye care.
Rinne test Interpretation
A. Normal ear: air conduction > bone conduction (test “positive”).
B. Conductive hearing loss: bone conduction > air conduction (test “negative”).
C. Sensorineural hearing loss: air conduction > bone conduction (test “positive”).
Weber’s test purpose and procedure
Tuning fork placed on top of patient’s head or on forehead. Sound clearer on one side of head indicates unilateral hearing loss.
Whispered Voice Test
Analyzes whether patient can hear a whispered voice at 60cm distance. Should be performed to patient’s side to ensure they aren’t lip reading.
Weber interpretation
A. Normal hearing both ears: left = right (test “central”).
B. Sensorineural hearing loss in right ear: left > right (test lateralizes to left).
C: Conductive hearing loss in right ear: right > left (test lateralizes to right).
Tympanometry
Measures pressure and compliance within middle ear alongside movement of the ear drum