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69 Cards in this Set

  • Front
  • Back
Part of the audiometer that is used to set the level of a tone that is present is the
attenuator
Air conduction testing may be performed using:
supra-aural headphones
insert earphones
Main purpose of pure-tone testing by bone conduction
Diagnostic: to determine type of hearing loss
A pure-tone thershold in clinical audiometry is
level in decibels (HL) where someone responds 75% of the time
THe purpose of clinical masking
to prevent the non-test ear from responding to sound in test ear
The audiometric patter of a conductive hearing loss is
bone cond. within normal limits and air conduction poorer than normal w/ air-bone gaps
Speech reception test (SRT)
performed using spondees and the resulting score is dB HL
Word recognition testing is
performed using a list of single syllable words and the resulting score is a %
IN an audiological test situation, speech understanding ability can vary as a function of
test level
test materials
live voice vs. recorded mode of presentation of test materials
Tympanometry provides information primarily about
middle ear
tympanonogram indicates
admittance as a function of air pressure change
measuring the integrity of the acoustic reflex arc involves elements of
middle ear, inner ear, aud nerve, facial nerve
ABR
is measured using electrodes
is a far-field potential
Which of the following is a stimulus dependent Auditory Evoked Potential?
Electrocochleography
ABR
You use the ABR to estimate a child's hearing status. No clearly defined peaks were seen in the recording. What could cause these results?
Patient has a severe to profound HL
Electrode impedance was very hight
OAE
generated w/ clicks, tones, may be present w/ no stimulation
TEOAE
wil not be present if there is fluid in the middle ear
What do ABR, Evoked OAEs and Immitance testing have in common?
they are all objective tests
A system with high admittance has...impedance
low
and interaural attenuation factor of 40db HL when testing with headphones means:
the skull attenuates sound by 40dB HL btw ears
Audiogram: Circles/[=
X/]
left=X/]
right= cirlce/ [
refering to your audiogram, what tye of tympanogram would you expect for the right ear
Peak at 0 pressure, good admittance
TEOAEs in left ear?
NO
Referring to Audiogram..why no TEOAEs?
NO TEOEAs if middle ear is abnormal which is conductive loss bc sound wouldn't go through to the chochlea
95 dB HL stimulus to the right ear
Acoustic reflex: Present
110 dB Hl stimulus to the left ear
present acoustic reflex
110 dB HL stimulus to left ear
absent AR
110 dB HL stimulus to the left ear (contralateral)
absent
PTA of right ear and left
42 and 68
How would you classify the KIND of TYPE of hearing loss
right: Sensosineural
left: Conductive
Predict the SRT scores
Right: 45
Left: 70
Tympanogram normal or abnormal?
Right: NORmal
Left: Abnormal
what is the configuration of the hearling loss
right: flat
left: Slopping
You are going to test for distortion products. F1 will be 2000Hz. What's f2
2400Hz
What is the most robust distortion product?
2F1-F2
What is the inter aural attenuation factor for bone conduction?
0 dB HL
Test result you would see w/ otitis media w/ effusion
Type B
Microtia
None of the above
Remediation of SHL
Management of Envir.
Heaing AIds
CI
Aural Rehab
x-linked means
A trait is carried by X chromosome
Waarenburgs Syndrome
White Forelock
young children, mild HL
Result in poor audioroty attention
Operant conditioning
VRA
Best test for determing in HL in 2 mo old
ABR
Conductive loss
Otosclerosis
pain, pressure and 'plugged ear' feeling with HL
otitis media with effusion
Exploratory surgery reveals an eroded ossicular chain
Cholesteatoma
Can happen if Hyperbillrubinemia is not treated soon enough
Kernicterus
Prenatal infection
Rubella
Permanent Threshold Shift
Loss of outer hair cell
Noise induced hearing loss
Audiometric results would help you differentiate btw noise-induced hearing loss and an acoustic tumor
hearing loss is asymmetrial, poorer high freq loss in RIght ear
SRT excellent in left, poor in right
CANS
Perform Complex Auditory Signal Processing
any morbid phenomenon or departure from the normal in function, appearance, or sensation, experienced by the pt and indicative of a disease. subjective sign of a disease
symptom
Your patienthas a moderate conductive HL as a determined by air and bone conduction testing. What other test will help you differeniate btw otitis media and otosclerosis
Immitance
Which audiometric result would help you differentiate btw sphyliss and Meniere's disease?
Hearing is asymmetric with a low freq senssorinerual loss
Tympanosclerosis is a demylinating disease of 8th nerve
false
Noise induced HL greatest peak at 4000Hz
True
Aminoglycosides are used to treat viral infections
False
Mutation of Connexin 26 gene affects potassium transport in hair cells
true
Low frew of HL is common in patients w/ Meinere's disesae
flase
Imagine to diagnois tumor
MRI, CT, PET
Autosomal Recessive HL
Usher's Syndrome
Prebycusis
Sensory
Ototoxic chemicals
Heavy Metals
Benzo
Ototoxic Drugs
Loop diuretics
Antimalarial
Audiogram for Otosclerosis
gap btw air and bone
Noise INduced Audiogram
Sharp Dip
Prebycusis
Normal then downward slope
Rubella
Severe Slope (Profound LOSS)