quick

can’t have air bone gap with normal

tympanogram, means loss is sensorineural

otoacoustic emissions disappear around

30-40 dB hearing loss

acoustic reflexes can be absent due to

sensorineural hearing loss

for conductive hearing loss, WRS is usually still

high

with otosclerosis, reflexes are absent since

signal cannot travel well due to stapes not moving

type As is a sign of

otosclerosis

conductive hearing loss is a sign of

otosclerosis, otitis media, obstruction

a plugged tube shows up as

conductive hearing loss

small PV

flat tympanogram

	Right	Left
Ipsi	P	A
Contra	P	A

L side VIII nerve lesion

sensorineural hearing loss

	Right	Left
Ipsi	A	P
Contra	P	A

patient has facial drooping

R side VII nerve lesion

	Right	Left
Ipsi	A	P
Contra	A	P

R ear VIII nerve lesion

sensorineural hearing loss

	Right	Left
Ipsi	P	A
Contra	A	A

L ear acute suppurative otitis media

otosclerosis

PIPB rollover is done when WRS is tested ___ for same ___ (R or L)

twice, ear

poor WRS is a sign of

neural or sensorineural hearing loss

no OAEs with

sensory hearing loss

OAEs are seen with

neural hearing loss

does conductive or mixed hearing loss cause OAEs to occur?

no

to see OAEs with sensorineural hearing loss, it depends if loss is

sensory = no OAEs

neural = yes OAEs

normal child PV range

0.4-1.0

normal adult PV range

0.6-1.5

obstruction results in

small physical volume

middle ear fluid results in

normal physical volume

perforation or tube results in

large physical volume

criterion I is if

two frequencies of the same ear are worse than…

criterion II is if

BC is better than AC by…

criterion III is…

if previous don’t apply, but AC PTAs differ by 10 dB or more