Seizures: Evaluation and Functionality of the EEG
Über den Vortrag
Der Vortrag „Seizures: Evaluation and Functionality of the EEG“ von Roy Strowd, MD ist Bestandteil des Kurses „Year 3 – Internal Medicine“.
Quiz zum Vortrag
Which statement regarding an EEG is the most accurate?
- Depth electrodes offer the best resolution to identify a seizure focus deep within the brain.
- Cortical electrode signals are weaker and less accurate than surface electrode signals.
- Depth electrodes are the most commonly used EEG electrodes.
- Cortical electrodes are placed underneath the skin but outside the skull.
- Surface electrodes offer the most accurate identification of the seizure focus.
Which statement is the most accurate with respect to EEG leads?
- Odd numbers are used to signify the left side of the brain.
- The first four lines signify the right parasagittal chain.
- The “Z” chain represents lateral temporal lobes.
- By convention, the posterior leads are listed first.
- All electrodes show equal activity when a seizure begins.
Which statement is the most accurate with respect to the frequencies seen on an EEG?
- Beta waves are seen in healthy individuals.
- Alpha waves are seen when an individual is attentive.
- Theta waves are normal in an adult who is awake.
- Delta waves have a frequency of < 4-7 Hz.
- Muscle activity will not alter the waveform.
Which statement regarding brain activity is the most accurate as seen on an EEG?
- A seizure will appear as a synchronized pattern within a centralized area.
- The amplitude of waves during normal brain activity is high.
- The end of a seizure is determined based on the gradual cessation of electrical activity.
- Neurons fire at random times and locations during a seizure.
- Electrical activity remains high during the postictal phase.
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Dozent des Vortrages Seizures: Evaluation and Functionality of the EEG
Roy Strowd, MD
Dr. Roy Strowd is the Assistant Dean of Undergraduate Medical Education at the Wake Forest Baptist Medical Center, in North Carolina, USA.
He obtained his MD from Wake Forest School of Medicine in 2009, and his MEd from Johns Hopkins University in 2021. Currently, he co-directs the Neurofibromatosis and Tuberous Sclerosis Clinics at Wake Forest Baptist Medical Center, and is a researcher for the Adult Brain Tumor Consortium (ABTC) and Alliance for Clinical Trials in Neuro-Oncology.
Due to his achievements, he earned the M. Brownell Anderson Award from the Association of American Medical Colleges.
Within Lecturio, Dr. Strowd teaches courses on Clinical Neurology.
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