Audiology: Final

Question 1

What are the basic components of a HA?

Answer 1

Microphone, amplifier, receiver, battery, volume control, & program button

Question 2

What does the microphone in a HA do?

Answer 2

It captures the sound from the environment

Question 3

What does the amplifier of a HA do?

Answer 3

It makes the signal louder

Question 4

What does the reciever part of the HA do?

Answer 4

It sends amplified signal to the ear

Question 5

What does the program button do?

Answer 5

It chooses different listening programs

Question 6

What HA styles are there?

Answer 6

body, behind-the-ear (BTE), and in-the-ear (ITE)

Question 7

What types of ITE are there?

Answer 7

Full shell, half-shell, canal, and completely-in-the-canal (CIC)

Question 8

What are body aids?

Answer 8

increase power, easy to manipulate due to larger controls, durable, and good for multi-handicapped, MR, CP, and elderly populations

Question 9

What is the difference between open and pairing BTEs?

Answer 9

Open BTEs usually mean that a person has normal low frequencies hearing so the canal should be open to receive the low frequencies sounds naturally while pairing is when you could be able to get binaural hearing through hearing aids while using the phone

Question 10

What does the external microphone of a CI do?

Answer 10

it picks up sounds and speech in the environment

Question 11

What does the speech processor of a CI do?

Answer 11

digitizes, analyzes, and processes the acoustic signal

Question 12

What does the cord of a CI do?

Answer 12

it sends the digitized sound to the external transmitter

Question 13

What does the external transmitter of a CI do?

Answer 13

It sends a signal across the skin to the internal receiver

Question 14

What does the internal receiver of the CI do?

Answer 14

It stimulates the electrode array based on the frequency information of the signal

Question 15

What does the electrode array of the CI do?

Answer 15

It sits in the cochlea and has the electrodes. The low frequencies stimulate the apical end and the high frequencies stimulate the basal end

Question 16

What determines candidacy for a CI?

Answer 16

complete audiological evaluation, medical evaluation, speech and language evaluation, and psycho-educational evaluation (if needed)

Question 17

What is the FDA age regulation for a CI?

Answer 17

Adults: no upper age limit
Children: less than or equal to 12 months old

Question 18

What is the FDA onset of hearing loss regulation for a CI?

Answer 18

prelinguistic or postlinguistic

Question 19

What is the FDA degree of bilateral sensorineural hearing loss regulation for a CI?

Answer 19

Adults: moderate to profound loss in the low frequencies and profound loss in mid to high
Greater than or equal to 2: severe to profound loss in the low frequencies and profound loss in mid to high frequencies
Less than 2 years old: profound loss across the audiogram

Question 20

What is the FDA adult aided speech scores regulation for a CI?

Answer 20

Less than or equal to 50% aided sentence recognition in the ear to be implanted
Less than or equal to 60% aided in the contralateral ear or binaurally

Question 21

What is the FDA pediatric speech performance regulation for a CI?

Answer 21

Aged 2 and up: less than or equal to 30% in the best aided condition
Under 2: lack of auditory progress with bilateral hearing aids after 3-6 months of aural habilitation

Question 22

What is mapping?

Answer 22

It is a program in the speech processor that stimulates the electrodes in the individual’s cochlea. A map consists of threshold levels and comfort levels. Periodic adjustment of maps is necessary based on changing speech perception needs.

Question 23

What is threshold levels for mapping?

Answer 23

lowest level of stimulation that will generate a response

Question 24

What is comfort levels for mapping?

Answer 24

the highest level of stimulation that is comfortably loud

Question 25

What should the thresholds fall between for mapping?

Answer 25

20-35dBHL (within the speech banana)

Question 26

Neonatal hearing screening consists of…

Answer 26

OAR and ABR

Question 27

How many thousand babies will be born with a hearing loss?

Answer 27

1-3 per thousand

Question 28

How many NICU babies will have a hearing loss?

Answer 28

1 in 50

Question 29

How many states have a newborn hearing screening?

Answer 29

47 states and District of Columbia

Question 30

What is behavioral observation audiometry (BOA)?

Answer 30

It is a test that looks at the behavior response to sound such as eye blinking/widening, sucking change, or searching

Question 31

What age group uses BOA?

Answer 31

children up to 4 months

Question 32

What are the disadvantages of BOAs?

Answer 32

1. performed in a sound field so you cannot examine both ears only the better ear
2. cannot obtain threshold because attention and motivation is low with this population

Question 33

What is visual reinforcement audiometry (VRA)?

Answer 33

When a child is condition to sound using something visually interesting (lightened toy). It is first present with both the sound and light together, but then only present when the child attends to the sound (reinforces the child’s behavior).

Question 34

What age group uses VRA?

Answer 34

children 5 months up to 2 years

Question 35

What is an advantage of VRA?

Answer 35

It can be done in sound-field or with headphones

Question 36

What is play audiometry?

Answer 36

When a child is conditioned to sound by playing a game (put a block in the bucket). May need to do hand over hand training until the child gets it indepentently

Question 37

What age group uses play audiometry?

Answer 37

2-5 years old

Question 38

What is an advantage of play audiometry?

Answer 38

can be done in a sound-field or with headphones