text: PROCEDURE:,  A 21-channel digital electroencephalogram was performed on a patient in the awake state.  Per the technician's notes, the patient is taking Depakene.,The recording consists of symmetric 9 Hz alpha activity.  Throughout the recording, repetitive episodes of bursts of 3 per second spike and wave activity are noted.  The episodes last from approximately1 to 7 seconds.  The episodes are exacerbated by hyperventilation.,IMPRESSION:,  Abnormal electroencephalogram with repetitive bursts of 3 per second spike and wave activity exacerbated by hyperventilation.  This activity could represent true petit mal epilepsy.  Clinical correlation is suggested.sleep medicine, alpha activity, wave activity, hyperventilation, electroencephalogramNOTE,: Thesetranscribed medical transcription sample reports and examples are provided by various users andare for reference purpose only. MTHelpLine does not certify accuracy and quality of sample reports.These transcribed medical transcription sample reports may include some uncommon or unusual formats;this would be due to the preference of the dictating physician. All names and dates have beenchanged (or removed) to keep confidentiality. Any resemblance of any type of name or date orplace or anything else to real world is purely incidental.