Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ENT 1 > DM- audiology tympanometry > Flashcards

DM- audiology tympanometry Flashcards

1
Q

provides objective info about middle ear integrity

A

tympanometry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

how tympanometry works

A

induces pressure change in ear canal & makes graphic representation of acoustic compliance of TM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

bell shaped tympanometry means…

A

normal compliance/middle ear integrity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

3 parts of middle ear

A

malleus
incus
stapes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

flat tracing on tympanometry means (3)

A

no change w/ change in pressure
middle ear fluid w/ small equivalent volume
TM perforation or patent PT tube w/ large equivalent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

negative pressure on tympanometry means..

A

retracted TM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

2 newborn screenings

A

ABR & OAE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

formed by synchronous electrical activity of neurons in various parts of the auditory nervous sys; 35dB presentation level

A

ABR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

records evoked potential and waves from low brainstem; pass or refer

A

ABR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what does it mean if response present result with ABR

A

r/o significant amount of hearing loss

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

sound introduced in ear, response generated from cochlear outer hair cells & emission recorded in external auditory canal

A

OAE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what does the OAE tell you- does it tell you about if there is hearing loss?

A

NO. it tells how the cochlea is functioning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what happens to babies who refer on ABR or OAE or can’t perform behavioral testing?

A

they move on to diagnostic OAE or ABR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

CONFIRMS function through level of cochlear outer hair cells

A

diagnostic OAE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

ESTIMATES degree of hearing

A

diagnostic ABR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

duration of diagnostic OAE vs diagnostic ABR

A

diagnostic OAE takes less than 20 mins while the ABR one takes hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

which diagnostic new born hearing thing requires sedation in kids over 3 months old

A

diagnostic ABR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

4 pediatric hearing screening

A

tympanometry
visual reinforcement audiometry (VRA)
conditioned play audiometry (CPA)
conventional audiometry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

pediatric hearing screen for age 10-12months & up

A

Visual reinforcement audiometry (VRA)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

pediatric hearing screen for 2.3-4 yrs of age

A

conditioned play audiometry (CPA)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

which pediatric screening involves kids sitting in lap and turning in direction of sound w/ toy lighting up if they get it right

A

visual reinforcement audiometry (VRA)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

which pediatric screening requires kid to perform action in response to sound but requires flexibility bc of kids short attention span

A

conditioned play audiometry (CPA)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

pediatric hearing screen for 5+ years old/kindergartners

A

conventional audiometry

24
Q

one con about the conventional audiometry

A

its in less than ideal environment

25
Q

3 adult hearing screens

A

pure tone audiometry w/ air & bone conduction
word recognition testing
acoustic immittance measures (tympanograms and acoustic reflex threshold)

26
Q

what is otosclerosis

A

fixation of the stapes footplate

27
Q

type of hearing loss with otosclerosis

A

conductive or mixed

28
Q

natural hx of otosclerosis

A

gradual onset and progression– adult onset (middle aged women)
fam hx of hearing loss

29
Q

which condition can rapidly progress in pregnancy or after labor?

A

otosclerosis

30
Q

how is otosclerosis diagnsoed?

A

audiometric findings, hx, imaging
ear exam is normally normal

31
Q

tx of otosclerosis

A

stapedectomy (surgery)
hearing aid

32
Q

what causes meniere’s dz

A

malfunction in endolymph volume regulation mechanism in inner ear
endolymphatic pressure increases in sac

33
Q

menieres involves distinct episodes of.. (4)

A

aural pressure/fullness
unilateral tinnitus (roaring sound)
prolonged rotational vertigo
low frequency fluctuating sensorineural loss

34
Q

sx of idiopathic endolymphatic hydrops

A

several variations of classic sx and can be BILATERAL
cochlear or vestibular hydrops

35
Q

how to control attacks of idiopathic endolymphatic hydrops (4)

A

diet– low salt, caffeine, chocolate, alcohol
meds
endolymphatic sac decompression
labryinthectomy

36
Q

hair cells in cochlea are damaged d/t exposure to excessive noise

A

noise induced deafness

37
Q

type of hearing loss with noise induced deafness

A

sensorineural loss

38
Q

2 things that result in noise induced deafness

A

chronic exposure to noise ove 85 dB SPL
acoustic trauma from one exposure to high intensity noise (gun, firecracker)

39
Q

what frequency is hearing loss often worse with noise induced deafness

A

4000 hz

40
Q

tx of noise induced deafness

A

nothing available but hearing aid may help

41
Q

what causes sensorineural loss & duration of this kind of loss vs. what causes conductive loss

A

sensorineural: cochlea or nerves related to it; usually permanent
conductive: middle or external ear pathology

42
Q

on audiogram graph, what does it mean when x and < line up?

A

bilateral hearing loss

43
Q

4 common causes of sensorineural loss

A

presbycusis
noise
ototoxicity
menieres dz
sudden viral or vascular insult

44
Q

what causes sudden sensorineural hearing loss

A

disruption of vascular supply to cochlea via stroke or surgery (can also be viral, MS, autoimmune, unknown)

45
Q

tx for sudden sensorineural loss?

A

its emergent
steroids & antivirals ASAP to increase chance of recovery
some hearing loss improves spontaneously

46
Q

which is more amendable to intervention– sensorineural or conductive loss

A

conductive

47
Q

if no medical intervention, what can you do for conductive loss

A

refer to ENT for possible amplification

48
Q

audiometric results of both conductive loss & mixed hearing loss

A

air-bone gap of 15 dB or more

49
Q

audiometric results of sensorineural loss

A

bone and ear conduction lines up

50
Q

common causes of conductive loss (5)

A

wax impaction
ear drainage
otitis externa/media
ossicular pathology (otosclerosis, congenital, trauma)
cholesteatoma

51
Q

tx of mixed hearing loss

A

surgery or amplication

52
Q

common causes of mixed hearing loss (3)

A

presbycusis + cerumen
congenital sensorineural + otitis media
otosclerosis + noise exposure

53
Q

what are the tuning fork tests used for

A

figure out type of loss

54
Q

what does it mean if bone > air with rinne test

A

conductive loss— it will be abnormal in affected ear

55
Q

unilateral sensorineural vs conductive loss, what side does weber lateralize

A

sensorineural: unaffected side
conductive: affected side

ENT 1 (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions