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Audiometric hearing shift — DOccMed MCQ

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ModerateHealth SurveillanceAudiometric hearing shiftDOccMed

Audiometric surveillance shows 15 dB shift at 3 and 4 kHz bilaterally over three years. Worker is asymptomatic. What is the most appropriate action?

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Correct answer: D — Investigate causes including hearing protection adequacy and compliance, workplace noise levels, and non-occupational factors, with confirmatory audiometry

A significant shift warrants investigation regardless of symptoms. Confirm with repeat audiometry, review protection adequacy and compliance.

Reference: HSE HSG256; Noise at Work Regs