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100

5 "tools" every audiologist needs and their function

booth (w/ audiometer and transducers), video otoscope, HA analyzer and real ear probe microphone measurement (one instrument, measure how much HA works/amplifies), computer network (software and hardware for patient records and HA settings), and workshop (in house repairs)

100

8 FDA red flags

deformity of ear (present at birth or caused by trauma), active drainage in previous 90 days, sudden or rapidly progressive HL during previous 90 days, sudden or long term dizziness, sudden or recent unilateral HL in past 90 days, ABG of 15 dB at 5,1,2 kHz, significant cerumen buildup or foreign body in canal, ear pain or discomfort 

100

Three things that happen for the technical aspects of treatment

HA selection (some decisions made for audiologist, some by audiologist and patient), quality control (does the aid work?), fitting and verification (how does it feel and sound?)

100

Two important facts of prescriptive methods (not the rules of prescriptive methods)

make the sound loud enough for HA to amplify at MCL and not to reach LDL 

100

5 tips for hearing aid orientation groups

group by age and circumstance, require significant others to attend, older pt group is most common, schedule snack time, offer incentives 

200

Redundancy of Speech w/ an example

the meaning of speech is said in many ways 

ex. the cats are in the tree (can see plurality with cats or "are")

200

Speechreading 

using everything available to try to understand what is being said 

200

Lipreading

understanding the message by watching the lip and jaw movements 

200

Visemes

groups of phonemes that look the same on the mouth 

200

Homophones and examples 

phonemes within the same viseme group 

p b m

f v

th th

wh r

sh zh tsh dzh

t d n l

k g ng

300

Things about the speaker that enhance or detract from speechreading

familiarity of speaker, facial expression, gestures, articulation, lip movement, rate of speech distracters, gender, extent of message 

300

Things about the message the enhance or detract from speechreading

visibility, constraints, redundancy 

300

Things about the environment that enhance or detract from speechreading

distance, viewing angle, competition, lighting, situational cues 

300

Things about the listener that enhance or detract from speechreading

residual hearing, age, language skills, intelligence, personality traits, visual skills, gender 

300

four problems people with hearing loss have 

decreased audibility, decreased dynamic range, decreased frequency resolution, decreased temporal resolution 

400

PTA 1

500, 1000, 2000 

400

PTA 2

1000, 2000, 4000 


400

2 Frequency PTA is for

an upward sloping hearing loss 

400

The level at which you present word recognition testing

35 dB SL re: HL 

400

Head Shadow Effect (explain in terms of wavelength, frequency, diffraction, unilateral HL, bilateral HL w/ one HA)

when a sound comes from one side of the head, the head will cast an acoustic shadow and attenuate the sound to the opposite ear. It attenuates low frequencies because their wavelengths are larger than the diameter of the head, so they'll bend to the other ear (1500 Hz)


* HELP 

500
The test for temporal resolution 

Gap detection test 

500

Black box analogy of a hearing aid

sound energy enters the HA via a microphone (input), dB level of sound is increased by an amplifier (gain), the amplified sound exits the HA via a receiver (output) 

500

Block diagram for an analog HA

microphone > amplifier > receiver 

500

block diagram for a digital HA 

microphone > analog to digital converter > digital signal processor > digital to analog converter > receiver 

500

Input transducers in terms of energy transformation taking place

ways for energy to get into HA, the microphone changes acoustic energy into electric energy and the telecoils change electromagnetic energy into electric energy 

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