3/25/25, 7:47 EEG board prep Flashcards |
AM
EEG BOARD PREP EXAM QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED
Terms in this set (150)
-c3/c4 region
-7-11Hz
-does not block with eye opening
Mu Rhythm -easy to see with eyes open
-blocks unilaterally with contralateral hand
-asymmetrical and asynchronous
-NORMAL
->14 HZ
-detected during wakefulness, enhanced during
Beta
drowsiness, and decreased in deeper sleep
-seen on barbiturates and benzodiazepines
-NORMAL, awake
-sharp waves occurring in occipital region (o1/o2) during wakefulness
-visually scanning a picture in a lit room
Lambda waves
-physiological, eyes OPEN
-saccadic eye movement
-4-6hz
-occurs in stage 1/stage 2
-peaks at 30-60 years
Small sharp spikes / BETS -temporal region
-occurs sporadically and short duration
-NORMAL benign variant
-Single spike or 6-11 hz Mu like shape seen in
drowsiness and light sleep.
Wicket Spikes -mid temporal region
-seen in adults over 30
-NORMAL benign variant
-posterior/temporal region (t5/t6)
-normal benign variant
-light sleep
14&6hz positive spikes
-best seen in referential montage
-runs last less than 2 seconds
-seen in a lot of adolescents
-11-14hz , 1/2 second duration
-central regions
sleep spindles
-asynchrony is abnormal after 2years old
-stage 2 sleep
-2-6years old
-central/frontal regions
Hypnagogic Hypersynchrony
-paroxysmal bursts high voltage, 3-4.5hz
-normal variant of drowsiness
Dilantin toxicity ataxia (loss of control of body muscles)
-source reference deviation
Laplacian montage -looks at only the electrodes that are closest to the point of interest
-emphasizes localized waveforms
1/
6
, 3/25/25, 7:47 EEG board prep Flashcards |
AM
-complex partial sz
deja vu
-automatisms/impaired consciousness
-found in MR (mental retardation) patients
extreme spindles -high voltage, anterior dominant
-generalized
OIRDA (Occipital Intermittent Rhythmic -encephalopathy eeg pattern most associated with children
Delta Activity) -high amplitude, saw toothed, and reactive to eye opening
-seen in children
-cento/temporal
Rolandic Spikes
-seen in benign rolandic epilepsy
-Frontal Intermittent Rhythmic Delta Activity
-reacts to stimulation
FIRDA -2-3hz
-rhythmic
-awake adult eeg
generalized seizure characterized by sudden loss of muscle tone and strength; may
Atonic seizure (drop attack) cause the head to drop suddenly, objects to fall from the hands, or the legs to lose
strength, with falling and potential injury
Tonic seizure Muscle stiffness, rigidity
-normal physiological response to photic light
-frontal leads
photomyogenic response
-only seen with eyes closed
-abnormal response to photic
Photoparoxysmal response -spikes, polyspikes, or spike/waves
-mostly seen in FQ >10hz
recent subarachnoid hemorrhage, recent stroke, sickle cell disease, intracranial
HV contraindications
hemorrhage, old age, heart and/or breathing problems
photic contraindications subarachnoid hemorrhage, recent eye surgery
muscle artifact, generalized voltage suppression
tonic (tonic/clonic sz)
-stiffening/contracting of muscles
rhythmic twitching or jerking of muscles
clonic (tonic/clonic sz)
-spike and slow wave
-8-14 years old
-accentuated by HV
Posterior Slow Waves of Youth
-high voltage theta/delta
-occipital regions
-suddenly in resting EEG
SREDA (subclinical rhythmic electrographic -periodic sharp activity that progresses into a
discharges in adults) monorhythmic theta pattern
-seen in mostly normal adults over 50
By age 1, what should the background 5-6Hz
rhythm be?
what pattern is seen after cardiac arrest? alpha coma
EEG obtained during sleep are most complex partial seizures
important in what type of seizures?
2/
6
AM
EEG BOARD PREP EXAM QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED
Terms in this set (150)
-c3/c4 region
-7-11Hz
-does not block with eye opening
Mu Rhythm -easy to see with eyes open
-blocks unilaterally with contralateral hand
-asymmetrical and asynchronous
-NORMAL
->14 HZ
-detected during wakefulness, enhanced during
Beta
drowsiness, and decreased in deeper sleep
-seen on barbiturates and benzodiazepines
-NORMAL, awake
-sharp waves occurring in occipital region (o1/o2) during wakefulness
-visually scanning a picture in a lit room
Lambda waves
-physiological, eyes OPEN
-saccadic eye movement
-4-6hz
-occurs in stage 1/stage 2
-peaks at 30-60 years
Small sharp spikes / BETS -temporal region
-occurs sporadically and short duration
-NORMAL benign variant
-Single spike or 6-11 hz Mu like shape seen in
drowsiness and light sleep.
Wicket Spikes -mid temporal region
-seen in adults over 30
-NORMAL benign variant
-posterior/temporal region (t5/t6)
-normal benign variant
-light sleep
14&6hz positive spikes
-best seen in referential montage
-runs last less than 2 seconds
-seen in a lot of adolescents
-11-14hz , 1/2 second duration
-central regions
sleep spindles
-asynchrony is abnormal after 2years old
-stage 2 sleep
-2-6years old
-central/frontal regions
Hypnagogic Hypersynchrony
-paroxysmal bursts high voltage, 3-4.5hz
-normal variant of drowsiness
Dilantin toxicity ataxia (loss of control of body muscles)
-source reference deviation
Laplacian montage -looks at only the electrodes that are closest to the point of interest
-emphasizes localized waveforms
1/
6
, 3/25/25, 7:47 EEG board prep Flashcards |
AM
-complex partial sz
deja vu
-automatisms/impaired consciousness
-found in MR (mental retardation) patients
extreme spindles -high voltage, anterior dominant
-generalized
OIRDA (Occipital Intermittent Rhythmic -encephalopathy eeg pattern most associated with children
Delta Activity) -high amplitude, saw toothed, and reactive to eye opening
-seen in children
-cento/temporal
Rolandic Spikes
-seen in benign rolandic epilepsy
-Frontal Intermittent Rhythmic Delta Activity
-reacts to stimulation
FIRDA -2-3hz
-rhythmic
-awake adult eeg
generalized seizure characterized by sudden loss of muscle tone and strength; may
Atonic seizure (drop attack) cause the head to drop suddenly, objects to fall from the hands, or the legs to lose
strength, with falling and potential injury
Tonic seizure Muscle stiffness, rigidity
-normal physiological response to photic light
-frontal leads
photomyogenic response
-only seen with eyes closed
-abnormal response to photic
Photoparoxysmal response -spikes, polyspikes, or spike/waves
-mostly seen in FQ >10hz
recent subarachnoid hemorrhage, recent stroke, sickle cell disease, intracranial
HV contraindications
hemorrhage, old age, heart and/or breathing problems
photic contraindications subarachnoid hemorrhage, recent eye surgery
muscle artifact, generalized voltage suppression
tonic (tonic/clonic sz)
-stiffening/contracting of muscles
rhythmic twitching or jerking of muscles
clonic (tonic/clonic sz)
-spike and slow wave
-8-14 years old
-accentuated by HV
Posterior Slow Waves of Youth
-high voltage theta/delta
-occipital regions
-suddenly in resting EEG
SREDA (subclinical rhythmic electrographic -periodic sharp activity that progresses into a
discharges in adults) monorhythmic theta pattern
-seen in mostly normal adults over 50
By age 1, what should the background 5-6Hz
rhythm be?
what pattern is seen after cardiac arrest? alpha coma
EEG obtained during sleep are most complex partial seizures
important in what type of seizures?
2/
6
