aural rehab

where is otitis media?

middle ear

where is the damage in sensorineural loss?

inner ear/auditory/cochlear nerve

what causes conductive hearing loss?

damage in outer/middle ear, or a blockage

what type of hearing loss is noise induced

sensorineural

degrees of loss

-10 to 15= normal

16-25 slight

26-40 mild

41-55 moderate

56-70 mod-severe

71-90 severe

91+ profound

what is mixed loss?

sensorineural and conductive

auditory neuropathy

sound travels through ear fine, but auditory nerve can’t transmit signals to brain

CAPD

sound not processed in cortical areas, but it’s transferred fine

pure tone audiometry testing

identifies type and degree of hearing loss using bone and air conduction 

what is speech audiometry testing

establishes thresholds of perception

tympanometry

looks at health of middle ear

OAE otoacoustic emission

inner ear, hair cells wiggle: can indicate sensory hearing loss in newborns

Normal hearing produces OAEs; hearing loss is indicated by

the absence of OAEs

what does ABR do?

1. can help identify auditory neuropathy

2. identify retrocochlear hearing issues

3. used for newborn screening

4. Tells how inner ear is working
   

aka auditory brainstem response

auditory training levels

awareness to discrimination to identification to comprehension

help reading audiogram symbols

blue= left ear

red=right

left ear= x

right ear= o

type A tympanogram

normal middle ear

type B tympanogram

fluid, infection, or hole

type C tympanogram

negative pressure, sinus/allergy