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NBC-HIS Sample Board Questions And All Correct Answers.
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  • NBC-HIS - National Board For Certification In Hearing Instrument Sciences

C. Acoustic trauma - Answer The MOST common cause of sudden loss of hearing at 4000Hz is: A. Presbycusis B. Noise induced C. Acoustic trauma D. Acoustic neuroma C. Concussion in the previous six months - Answer During the course of taking a case history, which of the following informat...

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  • October 24, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • NBC-HIS - National Board for Certification in Hearing Instrument Sciences
  • NBC-HIS - National Board for Certification in Hearing Instrument Sciences

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NBC-HIS Sample Board Questions And
All Correct Answers.
C. Acoustic trauma - Answer The MOST common cause of sudden loss of hearing at 4000Hz is:

A. Presbycusis

B. Noise induced

C. Acoustic trauma

D. Acoustic neuroma



C. Concussion in the previous six months - Answer During the course of taking a case history, which of
the following information is

LEAST important?

A. Any unilateral tinnitus experienced

B. Any vertigo symptoms

C. Concussion in the previous six months

D. Sudden hearing Loss



D. Otosclerosis - Answer A younger mother comes in concerned that her hearing has gone down. In

taking her history, it's found that her mother also developed a hearing loss after

the birth of her first child. What would be the MOST probable etiology of this

problem?

A. Cholesteatoma

B. Otitis media

C. Meniere's disease

D. Otosclerosis



C. Otosclerosis - Answer Which of the following conditions would NOT be a concern in establishing a
pure

tone air conduction threshold?

, A. Collapsed eternal auditory meatus

B. Congenital atresia

C. Otosclerosis

D. Impacted cerumen



D. Ambient noise is more of a problem with insert earphones - Answer Which of the following
statements is FALSE when talking about audiometric

testing?

A. Headphones and insert earphones should produce comparable results

B. Bone conductor placement can affect the test results

C. Insert earphones can give more accurate results when testing a collapsed

ear canal

D. Ambient noise is more of a problem with insert earphones



C. A possible retrocochlear tumor - Answer A large dip at 6000 Hz in one ear only, with a positive tone
decay, is indicative of:

A. Acute otitis media

B. Industrial deafness

C. A possible retrocochlear tumor

D. Acoustic trauma



B. Impedance audiometry - Answer A patient who has worn hearing aids for a long time reports to your
office saying

that his ears are "stopped up." He recently had a cold.

Which of the following will give the MOST information about this patient's

complaint?

A. Real ear measurement

B. Impedance audiometry

C. Pure tone air conduction audiometry

D. Pure tone bone conduction audiometry

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