Question

presbycusis typically presents as:

low-frequency loss, unilateral
flat audiogram, unilateral
high-frequency loss, bilateral, symmetric
conductive loss, bilateral

Explanation:

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<reasoning>

Define presbycusis

Presbycusis is age-related hearing loss. It is a progressive, sensorineural hearing impairment.

Analyze typical presentation

This condition is characterized by bilateral, symmetric sensorineural hearing loss. It primarily affects the high frequencies first due to degeneration of hair cells at the base of the cochlea.

Evaluate the options

• "Low-frequency loss, unilateral": Incorrect. Presbycusis is bilateral and high-frequency.
• "Flat audiogram, unilateral": Incorrect. Presbycusis is bilateral and sloping (high-frequency).
• "High-frequency loss, bilateral, symmetric": Correct. This matches the classic presentation.
• "Conductive loss, bilateral": Incorrect. Presbycusis is sensorineural, not conductive.

</reasoning>

<answer>
<mcq-option>(A) Low-frequency loss, unilateral</mcq-option>
<mcq-option>(B) Flat audiogram, unilateral</mcq-option>
<mcq-correct>(C) High-frequency loss, bilateral, symmetric</mcq-correct>
<mcq-option>(D) Conductive loss, bilateral</mcq-option>
</answer>

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Answer:

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<reasoning>

Define presbycusis

Presbycusis is age-related hearing loss. It is a progressive, sensorineural hearing impairment.

Analyze typical presentation

This condition is characterized by bilateral, symmetric sensorineural hearing loss. It primarily affects the high frequencies first due to degeneration of hair cells at the base of the cochlea.

Evaluate the options

• "Low-frequency loss, unilateral": Incorrect. Presbycusis is bilateral and high-frequency.
• "Flat audiogram, unilateral": Incorrect. Presbycusis is bilateral and sloping (high-frequency).
• "High-frequency loss, bilateral, symmetric": Correct. This matches the classic presentation.
• "Conductive loss, bilateral": Incorrect. Presbycusis is sensorineural, not conductive.

</reasoning>

<answer>
<mcq-option>(A) Low-frequency loss, unilateral</mcq-option>
<mcq-option>(B) Flat audiogram, unilateral</mcq-option>
<mcq-correct>(C) High-frequency loss, bilateral, symmetric</mcq-correct>
<mcq-option>(D) Conductive loss, bilateral</mcq-option>
</answer>

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