Ear and audiology: BAHA indication: practice question

A ENT question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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ENT · Ear and audiology: BAHA indication

Sample item

A 25-year-old has had complete unilateral deafness since a viral illness. The opposite ear is normal, and CROS aids are unsatisfactory. Which device transmits sound from the deaf side to the healthy cochlea?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

B. Bone anchored hearing aid

A bone anchored hearing aid vibrates the skull through a titanium implant, and the vibrations reach the healthy cochlea by bone conduction. It is used in single-sided deafness and in conductive loss such as atresia or chronic discharge. A conventional aid cannot help a dead cochlea.

Option by option

  • A. Auditory brainstem implant

    A brainstem implant is for absent cochlear nerve and is too invasive here.

  • B. Bone anchored hearing aid (correct)

    Correct. Bone conduction carries sound across the skull to the good cochlea.

  • C. Stapes prosthesis

    A stapes prosthesis is for stapes fixation.

  • D. Conventional air conduction aid on the deaf ear

    An air conduction aid needs residual cochlear function on that ear.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this ENT question

What is the answer to this ENT question?

The best answer is B, Bone anchored hearing aid. A bone anchored hearing aid vibrates the skull through a titanium implant, and the vibrations reach the healthy cochlea by bone conduction.

Why is "Auditory brainstem implant" not the answer?

A brainstem implant is for absent cochlear nerve and is too invasive here.

Why is "Stapes prosthesis" not the answer?

A stapes prosthesis is for stapes fixation.

Why is "Conventional air conduction aid on the deaf ear" not the answer?

An air conduction aid needs residual cochlear function on that ear.

What concept does this question test?

It tests Ear and audiology: BAHA indication in ENT. It is used in single-sided deafness and in conductive loss such as atresia or chronic discharge. A conventional aid cannot help a dead cochlea.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Ear and audiology: BAHA indication?

Learn tuning fork results and audiogram patterns by sketching them. Then use the flashcards and the other ENT questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.