26-year-old Man in Medicine / Internal Medicine — 26yo Man | Neurology | SMLE Q#274

SMLE Question #274

Medicine / Internal Medicine Neurology
Last updated: February 2026
A 26-year-old man presents after a first witnessed generalized tonic-clonic seizure. He has returned to baseline, is alert and oriented, and has a normal neurological examination. He has no history of seizures, no recent head trauma, and takes no regular medications. Initial blood tests, including glucose and electrolytes, are within normal limits. What is the most appropriate next investigation?

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