For DPOAEs, what relationship between frequencies is used clinically?
2f(1)-f(2)
100
What age group is conditioned play audiometry most used for when performing hearing screenings?
Preschool children 3-5 years old
100
What is the average interaural attenuation for inserts and headphones?
Headphones: 40 dB
Inserts: 60 dB
100
If the patient's SRT is 10 dB HL for the right ear and 25 dB HL for the left ear, what level should word recognition be presented (in dB HL) for each ear?
Right ear = 50 dB HL
Left ear = 65 dB HL
200
With what ear should air and bone conduction start?
Air conduction: the better ear as reported by patient; if no better ear, start with the right... Bone conduction: the poorer ear by air conduction
200
OAE's can occur ________ or are __________ by the outer hair cells of the cochlea.
spontaneously, evoked
200
What are the frequencies and intensities that school-age children are tested at for a hearing screening?
1000, 2000, 4000, Hz @ 20 dB HL
200
For air conduction masking, how is the initial masking level determined? Which ear is masking noise presented to (test ear or non-test ear)?
Cross hearing + 15 dB; Non-test ear
200
The calculated SRT should be within how many dB of the best PTA?
7 to 10 dB (+ or -)
300
What components are necessary to describe a person's hearing loss based on an audiogram (there are 4)?
type, shape, degree, symmetry
300
DPOAE's tend to appear in the _____ to _____ frequency range.
500 Hz, 8000 Hz
300
What score on the HHIE requires you to refer someone when performing a hearing screening?
10 or greater
300
How do you determine the need to add for the occlusion effect for bone conduction masking?
When there is no air-bone gap in the non-test ear (at 500 Hz, 1000 Hz, and 2000 Hz)
300
Word recognition is considered "excellent" if it is __% or higher?
92%
400
What component of an audiometer produces pure tones at octave and half octave frequencies?
Oscillator
400
At what frequencies do the greatest TEOAE amplitudes occur?
1000-2000 Hz
400
What percentage reproducibility is considered passing for TEOAEs when performing hearing screenings?
80%
400
What is the most effective masker for speech stimuli?
Speech-Shaped Noise (SN)
400
What is the difference between SDT and SRT?
SDT is the detection of speech 50% of the time whereas SRT requires the patient to repeat the word back correctly 50% of the time.
500
If the patient is presenting with lots of false responses, what should you do?
reinstruct, vary the time between audible tones, pulse or warble the stimulus
500
What are 3 clinical applications of OAEs?
differential diagnosis of hearing loss, newborn hearing screenings, monitoring of progressive hearing impairments
500
What frequency probe tone needs to be used when performing tympanometry on neonates and young infants (<7 months)?
668 or 1000 Hz
500
When is the Studebaker method used? When using this method, what is the IML?
When there is NO Air Bone gap present in the NTE; Presentation Level of the test ear minus 20 dB
500
Why are recorded materials preferred over monitored-live-voice?
prerecorded materials offer better control over level and quality of the speech signal; more reliable and valid test results