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Topic 14
Hearing Aids 1
23
Audiology
Graduate
04/17/2017

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Term
Real-Ear Unaided ___: The SPL, across frequencies, measured in the open (unaided) ear canal for a given input signal.
Definition
Response (REUR)
Term
Real-Ear Unaided Gain (REUG): The ___ provided by the pinna and the ear canal with consequent head diffraction effects as measured in the ear canal. Subtract the ___ signal level from the ___ across frequencies to obtain the REUG
Definition
gain; input; REUR
Term
How to do Real-Ear Measurement for unaided responses:
-Conduct ___ examination.
– Place probe tube in the ear canal, with end of the tube at
appropriate distance from the intertragal notch (i.e., within ___ mm of the eardrum).
– Place patient at appropriate distance/azimuth from the ___.
-Select desired ___ level.
-Conduct the ___.
Definition
otoscopic; 5; loudspeaker; input; measurement
Term
-__________: The frequency response of a hearing aid that is turned on, measured in the ear canal, for a particular input signal.
-_________: The gain of the hearing instrument across frequencies, measured in the ear canal. Subtract the input signal level from the REAR across frequencies to obtain the REAG.
Definition
Real-Ear Aided Response; Real-Ear Aided Gain
Term
Real-Ear Measurement for Aided Response and Gain:
-Conduct an ___ examination.
– Place the ___ ___ in the ear canal, with the end of the tube at appropriate distance from the intertragal notch (e.g. within ___ mm of the eardrum). NOTE: if the REAR/REAG is being used to calculate insertion gain, be sure to position the probe tube at the same location as the REUR/REUG measurement.
– Insert the hearing instrument into the client's ear while ___ the probe tube so that its position in the ear canal is not disturbed.
– Turn the hearing instrument on and set the user gain control to the ___ setting.
– Seat the patient at the appropriate distance/azimuth from the ___.
– Select the desired ___ level.
– Conduct the ___.
Definition
otoscopic; probe tube; 5; holding; desired; loudspeaker; input; measurement
Term
[image]
Definition
[image]
Term
____________: The amount of gain provided by the hearing instrument alone calculated by subtracting the REUG from the REAG across frequencies or by subtracting the REUR
from the REAR across frequencies. (REIG = REAG –REUG)
Definition
Real-Ear Insertion Gain (REIG)
Term
How to conduct real-ear insertion gain:
-Conduct an ____ as described above.
– Conduct an REAR as described above, using the same ___ ___ conditions and ___ point as the REUR (i.e., probe tube placement and signal level).
–___ the REUR from the REAR across frequencies or subtract the REUG from the REAG across frequencies (thankfully, probe microphone equipment automatically makes this calculation and displays the REIG across frequencies on the screen for you).
– Adjust hearing instrument characteristics so that the REAR
(REAG) and thus the subsequent calculation of REIG provides the best match to the ___ REIG values across frequencies.
Definition
REUR; sound field; measurement; Subtract; target
Term
REIG picture
Definition
[image]
Term
-Only ___% of dispensers (includes audiologists and hearing aid dispensers) and continue to do real ear measurement on nearly all patients
-___% have some piece of verifying equipment: hearing aid analyzer or real ear measurement system
Definition
20; 30
Term
-Real ear measurements are ___ with digital hearing aids
-Real-ear measurement ___ be used with digital hearing instruments
Definition
needed; can
Term
Real Ear Measurements are Very Effective on Digital Hearing Aids:
-An appropriate prescriptive ___ is used and those that are designed for advanced digital technology
-Appropriate ___ signals are used that can assess whether digital hearing aids are doing what they are supposed to do
-Appropriate ___ are made
Definition
formula; input; measurements
Term
-A ___ ___ exists in the mind of the consumer and is when the price for something does not equate to the value of the product or service
-There is a price-value mismatch in patients’ minds between ___ of and ___ of digital hearing aids
Definition
price-value mismatch; costs; value
Term
How do we combat the price-value mismatch?
Definition
Instead of lowering the price, increase the value and benefit from the device
Term
What are some signs of a successful fit after 30 days?
Definition
-Patient is wearing the instrument
-Hearing improvement has made a significant positive change in life
-Others agree of the benefit
-Patient refers other patients
-Instrument was not returned for credit
Term
What are the 2 methods of fitting a hearing aid?
Definition
initial or best fit and verified prescription fitting with output and gain
Term
What method is this? "Audiologist fits the hearing aid according to initial-fit algorithm"
Definition
Initial or best fit
Term
-Initial or best fit is based on ___ of patient, location of ___ effects, the earmold or shell ___ and ___, and tubing characteristics
Definition
age; microphone; design length
Term
Verified prescription fitting with output and gain:
-Allows for the “___” measurement of the in situ hearing aid
gain and output taking into account head-related transfer function to include
-___ location, earmold or shell design, ____, and ___.
Definition
direct Microphone; venting; tubing
Term
Manufacturers’ initial-fit approaches _____ approximate the prescribed response as verified by real ear measurement
Definition
do not
Term
are tasks completed by the audiologist to ensure a well-fitted hearing aid
Definition
verification
Term
are assessment made by the patient using outcome measures to determine if hearing aids have made a difference in their
lives
Definition
Validation
Term
-Digital hearing aids will become more ___
-Audiologists may become more reliant on manufacturer ______ approaches
Definition
advanced; initial-fit
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