Nervous and Senses Disorders · USMLE Step 1

A 4-year-old child has recurrent staring spells lasting 10 seconds, followed by immediate resumption of activity. EEG shows 3 Hz spike-and-wave discharges. Which diagnosis is most likely?

  1. Absence seizures
  2. Complex focal seizures
  3. Atonic seizures
  4. Febrile seizures
Show answer and explanation

Correct answer: Absence seizures

Absence seizures involve brief lapses in consciousness and show 3 Hz spike-and-wave patterns on EEG.

Difficulty: Medium Question 4 of 20

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