Dynamic range of hearing is the difference between ______ and ______.
threshold curve
loudness discomfort level
Dynamic range of hearing defines the range of hearing for a certain _______.
frequency
Dynamic range of hearing is greatest when the ear is most _________.
sensitive
Dynamic range of hearing is called the ________ when referring to the dynamic range across frequencies.
audibility area
Although SPL numbers are different they ceome ___ dB HL because _________.
0
it is normal hearing
dB SPL is a ______ measurement of sound and dB HL is a ______ measurement.
physical
perceptual
What kind of hearing loss?
None - normal
What kind of hearing loss?
Conductive
What kind of hearing loss?
Sensorineural
What kind of hearing loss?
Mixed
Shadow audiogram
Flat audiogram with threshold differences between right and left at about 40-55 dB
Speech detection threshold is the detection threshold for speech in ______ and _______ is the stimulus.
dB HL
any speech signal
The goal of SDT is to find the level in dB HL at which the patient can detect ____ % of the target words/sentences. Used most frequently with _____.
50
children
Speech recognition threshold is measured in _____ using _____ as stimuli.
dB HL
spondees (two syllable words with equal stress on both syllables)
SRT is the lowest level at which at least _____ correct responses were given at that intensity.
3
Word recognition testing is NOT __________.
a threshold measure
Word recognition score is the _______ at a given level.
percent correct
Word recognition testing is often used to _________.
obtain PB max
30 dB SL means __________.
30 dB above an individual listener's threshold
The SRT test is used to _____ and _______.
verify PTA
use as a reference level for administering word-recognition tests
Familiar objects or names are often used to determine ______.
SDT
Many times, SRT may be predicted from the ______.
pure tone audiogram
Word recognition scores for a listener with normal hearing or a conductive hearing loss would usually be _____.
100%
PTA and SRT are usually _______.
about equal or within 10 dB
SDT is usually ________ the SRT.
about 10 dB below
Acoustic immittance examines the integrity of ____, _____ and ______.
the middle ear
the inner ear
the 8th nerve
If the level of probe tone detected by the microphone is high, then the admittance of the tympanic membrane is _____.
low
If the level of probe tone detected by the microphone is low, then the admittance of the tympanic membrane is ____.
high
If the level of probe tone detected by the microphone is low, then the impedance of the tympanic membrane is ____.
low
Patients with retrocochlear pathology often show _____ in PI function.
roll-over
Patients with neural loss have difficulty processing/understanding sounds at high _________ level.
INTENSITY
A screening audiometer does not have the capability for what?
bone conduction testing
A device used for the calibration of an audiometer in sound field (using loud speakers) should include _____ but not ____ or _____.
a sound level meter
not an artificial mastoid
not a 6 cc coupler
Air bone gap is indicative of what kind of hearing loss?
either conductive or mixed
Air conduction can be the same or _____ than bone conduction but never _____.
poorer
better
Sensorineural hearing loss may be produced by damage to ____ or ______.
the inner ear
the auditory nerve
Which clinical practice in audiology is used to identify a person with potential hearing loss?
screening
Dynamic range of hearing is _____ across frequency.
different
The middle ear does what?
impedance matching transformer
Transmit sound from TM to the inner ear
Amplify the sound around 1500 Hz
Which of the following is true of masking dilemma?
B. BCTE + IA < IMLNTE
The most efficient type of masking noise for pure-tone testing is ___.
narrow band noise
Minimum masking for bone conduction at 250 Hz is:
AC (non-test ear) + 10 + 30
The right contralateral acoustic reflex can be used to measure the integrity of ________.
the left facial nerve
When there is damage to the auditory nerve, acoustic reflexes are typically _________.
absent or elevated
Reflex decay at 500 Hz to half amplitude within 5 seconds suggests ___________.
a retrocochlear lesion
The tympanic membrane is maximally compliant when _______.
middle earpressure equals outer ear pressure
The acoustic reflex is present for ipsilateral but absent for both right and left contralateral suggests:
lesion in the trapezoid body (in superior olivary complex)
The general classification of surgical procedure for repairing damage of middle ear structure is _________.
tympanoplasty
Cytomegalovirus (CMV), syphilis, and rubella are ______.
congenital infections that cause perinatal hearing loss
Children with cleft palate have a higher incidence of otitis media with effusion because __________.
they have chronic eustachian tube dysfunction due to disruptions of the tensor veli palatini muscle
Ménière's disease and presbycusis will both have a _____ tympanogram.
Type A
A listener with normal hearing in both ears is presented with a 2000 Hz tone in his right ear at 40 dB HL and a 2000 Hz tone in his left ear at 70 dB HL. The listener should report (think about stinger effect):
that he hears a tone in his left ear only
What is a common type of finding with pseudohypacusis?
lack of cross-hearing in profound unilateral hearing loss
Cahart notch is most common in _____.
women
PE tube (pressure equalizing tube) is designed to function primarily as an artificial what?
eustachian tube
A pseudotumor in the middle ear composed of skin and fatty tissues is called what?
cholesteatoma
To calculate the dynamic range of the listener for speech:
difference between SRT and LDL
Cannot predict _____ easily from audiogram.
word recognition
•Rules for interaural attenuation for air conduction apply to speech audiometry: