A farmer has sweating, salivation, small pupils, a slow pulse and muscle fasciculations. What is the most likely diagnosis?
Answer and explanation
Correct answer: A. Organophosphate poisoning
- Step 1: The picture of excess cholinergic signs with small pupils fits Organophosphate poisoning.
Answer
Organophosphate poisoning.
Why not the others: 'Opioid overdose': it gives pinpoint pupils with respiratory depression but dry skin and no fasciculations. 'Anticholinergic poisoning': it gives dilated pupils, dry skin and tachycardia. 'Heat stroke': it gives hot dry skin and high temperature.
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