HIS Assistive Listening Devices & Hearing Assistive Technology 3

Question 1

A patient with unilateral hearing loss asks about a CROS hearing aid system. Which statement BEST describes how a CROS system works?

Accepted Answer

It picks up sound from the impaired side and wirelessly transmits it to a hearing aid on the better ear

Answer

It amplifies sound in both ears equally

Answer

It uses a bone-anchored implant to transmit sound through the skull

Answer

It amplifies low-frequency sounds only for the impaired ear

Question 2

When counseling a patient about visual alert systems for a smoke alarm, which technology converts the auditory alarm into a visual signal?

Accepted Answer

Strobe light alerting system

Answer

Telecoil receiver

Answer

Personal FM transmitter

Answer

Infrared receiver

Question 3

Under the Hearing Aid Compatibility (HAC) Act, mobile phones sold in the U.S. must meet minimum M-rating standards. What does the M-rating assess?

Accepted Answer

Compatibility with hearing aids operating in microphone mode

Answer

Microphone sensitivity in noisy environments

Answer

Memory capacity of the hearing aid processor

Answer

Maximum output level of the phone speaker

Question 4

A patient who is deaf and uses American Sign Language (ASL) needs to communicate with hearing family members. Which assistive technology would BEST facilitate real-time spoken communication between them?

Accepted Answer

Video Relay Service (VRS)

Answer

FM assistive listening system

Answer

Personal amplifier

Answer

Captioned telephone

Question 5

Which signal-to-noise ratio (SNR) improvement is a remote microphone system typically expected to provide compared to a hearing aid used alone in a noisy classroom?

Accepted Answer

15–25 dB improvement

Answer

0–3 dB improvement

Answer

5–8 dB improvement

Answer

30–40 dB improvement

Question 6

A HIS fitting a BiCROS system should understand that unlike a standard CROS system, a BiCROS system is designed for patients who:

Accepted Answer

Have bilateral hearing loss of differing degrees

Answer

Have normal hearing in both ears

Answer

Have unilateral total deafness and normal hearing in the other ear

Answer

Have symmetrical sensorineural hearing loss

Question 7

Which organization administers the IIC (Invisible-in-Canal) and other hearing aid style classifications, and also provides credentialing standards relevant to hearing instrument specialists?

Accepted Answer

National Board for Certification in Hearing Instrument Sciences (NBC-HIS)

Answer

American Academy of Audiology (AAA)

Answer

Hearing Industries Association (HIA)

Answer

Joint Commission on Accreditation of Healthcare Organizations (JCAHO)