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EEG 210- Final Exam Review Questions and Answers
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EEG 210- Final Exam Review Questions and Answers
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EEG 210- Final Exam Review Questionsand Answers
True iior iiFalse: iiIt iiis iithe iiresponsibility iiof iithe iitechnologist, iiduring iithe iirecording, iito
iiprove iior iiverify iiwhether iia iiwaveform iiis iiartifact iior iinot. ii- iiAnswers ii-True
A iipotentially iimisread iiartifact iithat iimimics iihigh iiamplitude iifrontal iispikes iiis: ii-
iiAnswers ii-EMG iifrom iithe iimuscles iiof iithe iiforehead
An iiorderly iiapproach iito iiEEG iiincludes iiasking iiwhich iiof iithe iifollowing iiquestions? ii-
iiAnswers ii--Is iiextracerebral iiactivity iiphysiologic iior iinon-physiologic
-Is iiExtracerebral iiActivity iicontinuous iior iiintermittent, iifocal iior iidiffuse, iiintrensic iior
iiextrinsic, iienvironental iior iiinstrumental, iiand iiis iithe iisource iiresolvable iior
iiunresolvable?
-Is iicerebral iiactivity iicontinuous iior iiintermittent, iiepielptiform iior iinonepileptiform iiand
iithen iieither iinormal iior iiabnormal?
-Is iithe iiactivity iicerebral iior iiextracerebral?
-Is iicerebral iicctivity iifocal iior iigeneralized?
Wickets, iiSSS iior iiBETS, iiRMTD iior iiRhythmic iiMid-Temporal iiTheta iiDischarges iiof
iiDrowsiness), ii14 ii& ii6 iiHz iiPositive iiSpikes, iiSREDA ii- iiAnswers ii-Normal iivariants iithat
iimay iicause iiconfusion iiin iiEEG iirecordings
Classification iiQuantification iiLocalization ii- iiAnswers ii-Ways iiin iiwhich iiEEG iican iihelp
iiclarify iidiagnosis iiand iitreatment
30% ii- iiAnswers ii-Percentage iiof iipatients iireferred iito iiepilepsy iicenters iifor iirefractory
iiseizures iiwho iiare iimisdiagnosed
Quiet iipatient, iicontrolled iisetting, iiand iiqualified iiEEG iiTechnologist ii- iiAnswers ii-
Optimal iirecording iienvironment
First iirecording ii29-55% iiSecond iirecording iiwith iiuse iiof iisleep iideprivation iiincreases
iito ii85% ii- iiAnswers ii-How iimuch iidoes iia iisecond iiEEG iiincrease iithe iilikelihood iiof
iirecording iian iiepileptic iiabnormality?
True iior iiFalse: iiWhen iiusing iiscalp iielectrodes, iia iinormal iiclinical iiEEG iiexcludes
iisubclinical iifocal iiseizures. ii- iiAnswers ii-False
When iiusing iiscalp iielectrodes, iia iinormal iiclinical iiEEG iiexcludes iisubclinical iifocal
iiseizures. ii- iiAnswers ii-Video iithe iipatient iiduring iithe iirecording iiif iipossible, iiand
,iimonitor iiany iipotential iiartifacts iisuch iias iiEMG, iiTremor, iiHead iiMovement,
iiRespiration, iiEye iimovements, iiTongue iimovements, iior iiany iiartifact iioriginating iifrom
iithe iipatient iior iithe iienvironment.
Doll's iieyes: iieyes iimove iias iihead iimoves ii- iiStimulus iiin: iiOptic iiNerve ii(vision),
iiVestibulo-cochlear ii(hearing iiand iiequilibrium), iiSpinal iiAccessory ii(trapezius, iineck,
iiswallow) ii- iiAnswers ii-Response iiout: iioculomotor iinerve ii(eyelid iiand iieyeball
iimovements), iiAbducens ii(lateral iieyeball iimovement)
Cerebral iiAngiography iiCerebral iiScintigraphy ii(Radionucleide iiScan) iiTranscranial
iiDoppler iiUltrasound iiCT iiAngiography ii(CTA) ii(controversial iiSomatosensory iiEvoked
iiPotentials ii(controversial) ii- iiAnswers ii-Ancillary iitests
Pupil iiresponse: iiStimulus iiin ii- iiOptic iinerve ii(Vision) ii- iiAnswers ii-Response iiout:
iioculomotor iinerve ii(eyelid iiand iieyeball iimovements)
Pain iiresponses iiexam ii- iiAnswers ii-Evidence iiof iibrainstem iifunction
Gag iitest iiStimulus iiin: iiVagus iinerve ii(senses iiand iicontrol iiof iidigestive iiorgans, iitaste,
iislows iiheart iirate) ii- iiAnswers ii-glossopharyngeal iinerve ii(taste, iisenses iicarotic iiBP),
iihypoglossal iinerve ii(controls iitongue iimovement)
Apnea iiTest: iiAbsence iiof iibreathing iidrive iiPrerequisites: ii1. iiNormotension ii2.
iiNormothermia ii3. iiEuvolemia ii4. iiEucapnia ii(PaCo2 ii35-45 iimm iiHg) ii5. iiAbsence iiof
iihypoxia ii6. iiNo iiprior iievidence iiof iiCo2 iiretention ii(i.e. iichronic iiobstructive iipulmonary
iidisease iior iisevere iiobesity) ii- iiAnswers ii-Abort iithe iitest iiif iithe iipatient iibecomes
iiunstable ii(Hypoxic, iiHypotensive, iior iidevelops iicardiac iiarrhythmias)
In iian iiICS/ECI iirecording, iithe iiinterelectrode iidistances iishould iibe: ii- iiAnswers ii-at
iileast iigreater iithan iior iiequal iito ii10 iicm
True iior iiFalse: iiWhen iiperforming iian iiECS/ECI iirecording, iithere iishould iibe iiNO iiEEG
iireactivity iito iiINTENSE iisomatosensory, iiauditory iiand iivisual iistimuli. ii- iiAnswers ii-True
Tapping iieach iielectrode iiin iian iiECI/ECS iirecording iiis iidone iito: ii- iiAnswers ii-test iithe
iiintegrity iiof iithe iientire iisystem
How iimany iielectrodes iiare iineeded iito iiperform iian iiECS/ECI ii(evaluation iifor iibrain
iideath) iiEEG iiStudy, iito iiensure iithat iifocal iiattenuation iiis iinot iimistaken iifor
iielectrocerebral iiinactivity? ii- iiAnswers ii-the iifull iiset iiof iiInternational ii10-20 iiSystem
iielectrodes
True iior iiFalse: iiWhen iiperforming iian iiECS/ECI iirecording, iiadditional iimonitoring
iitechniques iishould iibe iiemployed iiwhen iinecessary, iiand iievery iieffort iimade iito
iieliminate iiand/or iiidentify iiand iidocument iiany iisources iiof iiartifact iisuch iias iiIV iidrips,
, iielectric iibeds, iiEKG, iirespiration iiand iimovement. iiCommon iiartifacts iican iibe
iimonitored iiwith iiEKG, iiEMG iiand iirespiratory iimonitoring iichannels. ii- iiAnswers ii-True
Impedances iiin iian iiECI/ECS iirecording iishould iirange: ii- iiAnswers ii-less iithan ii10K
iiOhms iibut iimore iithan ii100 iiOhms
In iian iiECS/ECI iirecording iithe iisensitivity iishould iibe: ii- iiAnswers ii-2µV/mm iifor iiat iileast
ii30 iiminutes iiof iithe iirecording
True iior iiFalse: iiAccording iito iiACNS iiGuidelines ii6: iiLow iifrequency iifilter iiin iiECS/ECI
iirecordings iishould iinot iibe iiset iiabove ii1 iiHz iito iiavoid iieliminating iislow iipotentials iiand
iithe iihigh iifrequency iifilter iishould iinot iibe iiset iibelow ii30 iiHz iito iiavoid iielimination iiof
iihigh iifrequency iipotentials. iiThe ii60-Hz iinotch iifilter iican iibe iiused iiwith iicare, iiand iionly
iiafter iiappropriate iitroubleshooting iiis iiperformed. iiIf iithe ii60-Hz iifilter iiis iiused,
iisegments iiof iiEEG iishould iialso iibe iirecorded iiwithout iithis iifilter iifor iicomparison. ii-
iiAnswers ii-True
States iithat iian iiindividual iiis iidead iiafter iiirreversible iicessation iiof iicirculatory iifunctions
iior iiall iifunctions iiof iithe iientire iibrain, iiincluding iithe iibrainstem ii- iiAnswers ii-Uniform
iiDetermination iiof iiDeath iiAct ii(UDDA) iiapproved iifor iithe iiUS iiin ii1980
Tests iithat iican iialso iibe iidone iito iiconfirm iithe iidiagnosis iiwhen iiunable iito iido iia
iicomplete iiphysical iiexamination iisuch iias iiin iithe iipresence iiof iia iifacial iiinjury iibut
iithese iitests iito iinot iisupplant iithe iiphysical iiexam iior iithe iiapnea iitest, iibut iionly iiadd iito
iiit ii- iiAnswers ii-Ancillary iitesting
Irreversible iicessation iiof iicirculatory iiand iirespiratory iifunction ii- iiAnswers ii-
Cardiorespiratory iiDeath
No iiEEG iiActivity iiover ii2 iiµV iiwhen iirecording iifrom iiscalp iielectrode iipairs iigreater iithan
iior iiequal iito ii10 iicm iiapart, iiwith iiimpedances iiunder ii10K iiOhms, iibut iiover ii100 iiOhms.
ii- iiAnswers ii-ECI ii(Electrocerebral iiInactivity) iior iiECS ii(Electrocerebral iiSilence)
Can iibe iicaused iiby iigeneral iianesthesia, iisevere iiintoxication, iior iihypothermia ii-
iiAnswers ii-Isoelectric iior iiflatline iiEEG
EEG iiis iidetermined iiby: ii- iiAnswers ii--Brainstem iiModulation iiof iithe iiReticular
iiActivating iiSystem
-Intracortical iiConnections
-Thalmocortical iiConnections
In iia iiLeft iiParietal iiAVM iiwith iiHemorrhage, iiwhere iithere iiis iiinvolvement iiof iiwhite
iimatter iias iiwell iias iigrey iimatter, iiwhat iichanges iiare iiexpected iion iithe iiEEG? ii-
iiAnswers ii-Slowing iiwith iisuppression iiof iialpha
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