EAR Flashcards
Bones of the ear in order from closest to tympanic membrane
Malleus, incus, stapes
Three main types of hearing loss
Conductive
Sensorineural
Mixed
What type of hearing loss is associated with the outer and middle ear?
Conductive hearing loss
What type of hearing loss is associated with the inner ear?
Sensorineural hearing loss
What is the most common type of hearing loss?
Sensorineural hearing loss - 90%
What is mixed hearing loss?
Both conductive and sensorineural hearing loss
What is a Rinne’s positive result?
Air conduction > bone conduction
If a person is Rinne’s positive but hearing has reduced equally for both bone and air conduction, what type of hearing loss do they have?
Sensorineural hearing loss
If a person is Rinne’s negative, what kind of hearing loss do they have? HINT: 2 potential types
Conductive hearing loss or severe sensorineural hearing loss
What conduction is heard better in a Rinne’s negative test?
Bone > air conduction
What is a normal Weber’s test result?
Sound heard equally in both ears
In Weber’s test, if the sound is heard louder on the side of intact ear, what is the likely hearing loss?
Sensorineural
In Weber’s test, if the sound is heard louder on the side of the affected ear, what is the likely hearing loss?
Conductive
What is pure tone audiometry?
Measures quietest sounds a person can hear at different frequencies (pitch) in each ear. Results plotted in pure tone audiogram
Four degrees of hearing loss severity
Mild, moderate, severe , profound
Describe tympanometry
Test of middle ear functioning. Looks at compliance of eardrum to changing air pressures, indicating how effectively sound is transmitted into middle ear
Number of people in UK severe or profoundly deaf
> 900,000