NATIONAL BOARD FOR CERTIFICATION IN HEARING
INSTRUMENT SCIENCES (NBS-HIS) EXAM PREP
WITH 30 ACCURATE QUESTIONS WITH VERIFIED
SOLUTIONS A+ GRADED 2025 EDITION.
1. Which factor least describes the selection of a hearing device?
Correct Answer: Conformity
Explanation: Selection of a hearing device is based on clinical data, patient
needs, and audiometric results—not conformity, which implies choosing
based on societal or peer pressure.
2. Data logging enables the hearing professional to observe:
Correct Answer: Environments, time and use, and preferred listening
conditions
Explanation: Data logging tracks how long the hearing aids are used, in what
sound environments, and with which user settings, to optimize future
programming.
3. Which of the following are true statements regarding the cochlea?
Correct Answer: There are 3,000–3,500 inner hair cells
Explanation: The cochlea contains approximately 3,000–3,500 inner hair
cells, which play a critical role in transmitting auditory signals to the brain.
4. Which of the following are true statements as they refer to HIPAA?
Correct Answer: Protects patients' privacy as it relates to their health records
Explanation: HIPAA is a federal law that protects the confidentiality of
personal health information.
, 5. A patient with conductive hearing loss is most likely to present with
which of the following?
Correct Answer: Higher MCLs and UCLs
Explanation: Conductive hearing loss often results in elevated hearing
thresholds while maintaining normal loudness growth, leading to higher Most
Comfortable and Uncomfortable Loudness Levels.
6. A patient exhibiting near-normal SRTs is most likely to present with
what type of hearing loss?
Correct Answer: Acoustic trauma
Explanation: Acoustic trauma may damage high frequencies while preserving
speech frequencies, resulting in near-normal Speech Recognition Thresholds
(SRTs).
7. A patient returns after an initial fitting complaining of hearing kitchen
appliances and the air conditioner. She wears binaural SIEs with user-
controlled multi-memory. What method would best verify her complaint?
Correct Answer: REM with 30 dB input level
Explanation: Real-Ear Measurement (REM) with a soft input level helps verify
over-amplification of soft environmental sounds.
8. A pre-delivery protocol by a hearing healthcare professional should
include which of the following?
Correct Answer: Biological check and programming
Explanation: These ensure the hearing aid is functioning correctly and is
personalized before delivery.
INSTRUMENT SCIENCES (NBS-HIS) EXAM PREP
WITH 30 ACCURATE QUESTIONS WITH VERIFIED
SOLUTIONS A+ GRADED 2025 EDITION.
1. Which factor least describes the selection of a hearing device?
Correct Answer: Conformity
Explanation: Selection of a hearing device is based on clinical data, patient
needs, and audiometric results—not conformity, which implies choosing
based on societal or peer pressure.
2. Data logging enables the hearing professional to observe:
Correct Answer: Environments, time and use, and preferred listening
conditions
Explanation: Data logging tracks how long the hearing aids are used, in what
sound environments, and with which user settings, to optimize future
programming.
3. Which of the following are true statements regarding the cochlea?
Correct Answer: There are 3,000–3,500 inner hair cells
Explanation: The cochlea contains approximately 3,000–3,500 inner hair
cells, which play a critical role in transmitting auditory signals to the brain.
4. Which of the following are true statements as they refer to HIPAA?
Correct Answer: Protects patients' privacy as it relates to their health records
Explanation: HIPAA is a federal law that protects the confidentiality of
personal health information.
, 5. A patient with conductive hearing loss is most likely to present with
which of the following?
Correct Answer: Higher MCLs and UCLs
Explanation: Conductive hearing loss often results in elevated hearing
thresholds while maintaining normal loudness growth, leading to higher Most
Comfortable and Uncomfortable Loudness Levels.
6. A patient exhibiting near-normal SRTs is most likely to present with
what type of hearing loss?
Correct Answer: Acoustic trauma
Explanation: Acoustic trauma may damage high frequencies while preserving
speech frequencies, resulting in near-normal Speech Recognition Thresholds
(SRTs).
7. A patient returns after an initial fitting complaining of hearing kitchen
appliances and the air conditioner. She wears binaural SIEs with user-
controlled multi-memory. What method would best verify her complaint?
Correct Answer: REM with 30 dB input level
Explanation: Real-Ear Measurement (REM) with a soft input level helps verify
over-amplification of soft environmental sounds.
8. A pre-delivery protocol by a hearing healthcare professional should
include which of the following?
Correct Answer: Biological check and programming
Explanation: These ensure the hearing aid is functioning correctly and is
personalized before delivery.
