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EEG 210- Final Exam Review Questions With Solutions $20.99   Add to cart

Exam (elaborations)

EEG 210- Final Exam Review Questions With Solutions

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  • Course
  • Electroencephalography
  • Institution
  • Electroencephalography

EEG 210- Final Exam Review Questions With Solutions Wickets, SSS or BETS, RMTD or Rhythmic Mid-Temporal Theta Discharges of Drowsiness), 14 & 6 Hz Positive Spikes, SREDA Normal variants that may cause confusion in EEG recordings Classification Quantification Localization Ways in which EEG ca...

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  • October 26, 2024
  • 44
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Electroencephalography
  • Electroencephalography
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UpperClass
EEG 210- Final Exam Review Questions
With Solutions

Wickets, SSS or BETS, RMTD or Rhythmic Mid-Temporal Theta Discharges of Drowsiness), 14

& 6 Hz Positive Spikes, SREDA Normal variants that may cause confusion in EEG

recordings




Classification Quantification Localization Ways in which EEG can help clarify diagnosis

and treatment




30% Percentage of patients referred to epilepsy centers for refractory seizures who are

misdiagnosed




Quiet patient, controlled setting, and qualified EEG Technologist Optimal recording

environment




First recording 29-55% Second recording with use of sleep deprivation increases to 85%

How much does a second EEG increase the likelihood of recording an epileptic

abnormality?

, EEG 210- Final Exam Review Questions
With Solutions
True or False: When using scalp electrodes, a normal clinical EEG excludes subclinical focal

seizures. False




When using scalp electrodes, a normal clinical EEG excludes subclinical focal seizures.

Video the patient during the recording if possible, and monitor any potential artifacts such

as EMG, Tremor, Head Movement, Respiration, Eye movements, Tongue movements, or any

artifact originating from the patient or the environment.




Doll's eyes: eyes move as head moves - Stimulus in: Optic Nerve (vision), Vestibulo-cochlear

(hearing and equilibrium), Spinal Accessory (trapezius, neck, swallow) Response out:

oculomotor nerve (eyelid and eyeball movements), Abducens (lateral eyeball movement)




Cerebral Angiography Cerebral Scintigraphy (Radionucleide Scan) Transcranial Doppler

Ultrasound CT Angiography (CTA) (controversial Somatosensory Evoked Potentials

(controversial) Ancillary tests




Pupil response: Stimulus in - Optic nerve (Vision) Response out: oculomotor nerve

(eyelid and eyeball movements)

, EEG 210- Final Exam Review Questions
With Solutions
Pain responses exam Evidence of brainstem function




Gag test Stimulus in: Vagus nerve (senses and control of digestive organs, taste, slows heart rate)

glossopharyngeal nerve (taste, senses carotic BP), hypoglossal nerve (controls tongue

movement)




Apnea Test: Absence of breathing drive Prerequisites: 1. Normotension 2. Normothermia 3.

Euvolemia 4. Eucapnia (PaCo2 35-45 mm Hg) 5. Absence of hypoxia 6. No prior evidence of

Co2 retention (i.e. chronic obstructive pulmonary disease or severe obesity) Abort the test

if the patient becomes unstable (Hypoxic, Hypotensive, or develops cardiac arrhythmias)




In an ICS/ECI recording, the interelectrode distances should be: at least greater than or

equal to 10 cm




True or False: When performing an ECS/ECI recording, there should be NO EEG reactivity to

INTENSE somatosensory, auditory and visual stimuli. True




Tapping each electrode in an ECI/ECS recording is done to: test the integrity of the entire

system

, EEG 210- Final Exam Review Questions
With Solutions

How many electrodes are needed to perform an ECS/ECI (evaluation for brain death) EEG

Study, to ensure that focal attenuation is not mistaken for electrocerebral inactivity? the

full set of International 10-20 System electrodes




True or False: When performing an ECS/ECI recording, additional monitoring techniques should

be employed when necessary, and every effort made to eliminate and/or identify and document

any sources of artifact such as IV drips, electric beds, EKG, respiration and movement. Common

artifacts can be monitored with EKG, EMG and respiratory monitoring channels. True




Impedances in an ECI/ECS recording should range: less than 10K Ohms but more than

100 Ohms




In an ECS/ECI recording the sensitivity should be: 2µV/mm for at least 30 minutes of the

recording




True or False: According to ACNS Guidelines 6: Low frequency filter in ECS/ECI recordings

should not be set above 1 Hz to avoid eliminating slow potentials and the high frequency filter

should not be set below 30 Hz to avoid elimination of high frequency potentials. The 60-Hz

notch filter can be used with care, and only after appropriate troubleshooting is performed. If the

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