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Farmer's lung — DOccMed MCQ

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ModerateOccupational Lung DiseaseFarmer's lungDOccMed

A farmer develops fever, cough and breathlessness 8 hours after handling mouldy hay. Symptoms recur during winter feeding, and chest auscultation reveals fine inspiratory crackles during an episode. What is the most likely occupational diagnosis?

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Correct answer: C — Farmer's lung due to hypersensitivity pneumonitis

Delayed systemic and respiratory symptoms after mouldy hay exposure are characteristic of hypersensitivity pneumonitis. Fine crackles during episodes support lower respiratory involvement rather than isolated asthma. Avoidance and exposure control are central, alongside respiratory assessment.

Reference: HSE Agriculture Respiratory Guidance; COSHH Regulations