Last updated on: September 18th, 2021

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You’re looking at an interactive case study from Prognosis: Your Diagnosis (one of four distinct learning formats available in Clinical Odyssey). Try it out, and have fun improving your clinical skills.



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A 32-year-old man presents 30 minutes after a generalized tonic-clonic seizure, which lasted for around three minutes and was followed by a brief period of confusion.

Further questioning reveals that he has been experiencing multiple episodes of abnormal twitching of his facial muscles over the last six weeks. Each episode lasted for a couple of minutes, during which time he remained conscious and rational.

His medical history is significant for trauma to the head and neck following a motor vehicle accident around a year ago, from which he obtained a complete recovery. At that time, computed tomography (CT) was negative for intracranial hemorrhages.

There is no family history of seizures. He does not smoke and drinks socially.

A complete blood count is within normal parameters, as are a random capillary glucose assay, and serum sodium and potassium levels.

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