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Guillain-Barré syndrome — RCPSC EM MCQ

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HardNeurological emergenciesGuillain-Barré syndromeRCPSC EM

A 47-year-old has progressive ascending weakness after diarrhoeal illness. Reflexes are absent, FVC is 14 mL/kg, single-breath count is reduced, and oxygen saturation remains 96%. What is the most appropriate next step?

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Correct answer: B — Admit to monitored care, notify neurology, and prepare for ventilatory support

Guillain-Barré syndrome with low FVC has impending ventilatory failure despite normal SpO2; monitored admission and airway planning are required.

Reference: Canadian neuromuscular emergency practice; airway management principles