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ABRET Normal Variants, Normal/Abnormal Adult EEG Questions With All Correct Answers
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ABRET Normal Variants, Normal/Abnormal Adult EEG Questions With All Correct Answers
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ABRET Normal Variants, Normal/Abnormal Adult EEGQuestions With All Correct Answers
What environmental factors enhance lambda?
a. low illumination visual scene
b. noxious stimuli
c. loud sounds
d. scanning high complexity visual scene - scanning high complexity visual scene
What is the electrical abnormality associated with breach rhythm?
a. a focal high voltage electrical generator in the cortex
b. a focal low impedance swelling of the scalp
c. a focal high impedance pathway through the skull
d. a focal low impedance pathway through the skull - a focal low impedance pathway
through the skull
Bancauds phenomenon, alpha squeak, and paradoxal alpha all have to do with:
a. a reaction of the background
b. an abnormality of the background
c. nonresponsiveness of the alpha rhythm
d. drowsy effect on the alpha rhythm - a reaction of the background
What normal activity would be seen most prominently at the C3 or C4 electrode
position?
a. alpha
b. mu
c. POSTS
d. FIRDA - mu
Rare 6-11 Hz negative sharp arciform waves, most commonly seen in adults over 30
years in the mid-temporal regions
a. RMTD
b. mu
c. wickets
d. midline theta rhythm - wickets
Which pattern is most likely to be seen during prolonged recordings of a normal
awake 30 year old?
, a. OIRDA
b. lambda
c. SREDA
d. FIRDA - lambda
Lambda waves are
a. evoked by eye movement
b. best seen just before falling asleep
c. usually negative in bipolar derivations
d. precursors of POSTS - evoked by eye movement
Posterior dominant rhythm (PDR) or alpha rhythm should not be calculated
immediately upon eye closure because of what normal variant?
a. Posterior slow waves of youth
b. slow alpha variant
c. alpha squeak
d. clenoids - alpha squeak
What do mittens, midline rhythmic theta, and trace aternans have in common?
a. they all appear exclusively from wakefulness
b. they are all markers of neonatal immaturity
c. they are all consistent with encephalopathy
d. they are all normal waveforms - they are all normal waveforms
Which normal waveform is not typically seen in the posterior leads?
a. lambda
b. POSTS
c. photic driving
d. wickets - wickets (they are rare variant found in midtemporal regions)
Mu rhythm
a. C3/C4
b. T5/T6
c. O1/O2
d. P3/P4 - C3/C4
An uncommon, but normal variant seen in adults 50 and older that may be mistaken
for epileptiform activity
a. SIRPIDs
b. ciganek rhythm
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