MCQ – 87801


 A 22-year-old man presents to the emergency department with a 1-day history of diplopia. Examination reveals limitation of abduction of the right eye and limitation of elevation of the left eye. The pupils measure 7 mm (RE) and 8 mm (LE) with poor reaction to light and accommodation. Bilateral ptosis is present. The least useful test needed to confirm the diagnosis is:


Clostridium botulinum toxin test

B. tensilon test

C. lumbar puncture


GQ1b antibody test

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