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ABRET EEG STUDY GUIDE EXAM (NEW
2024/ 2025 UPDATE) QS & AS| GRADE A|
100% CORRECT (VERIFIED ANSWERS)
When using the photic stimulator, the flash rate which would most
commonly activate seizure activity would be __ - ANS ✓15-18 flashes/second
Worst prognosis feature in the EEG of a comatose patient - ANS ✓Mon
rhythmic tracing without variability
A 0.5 wave is enhanced without affecting the spike by using: - ANS ✓LF 0.3
hz
Subclinical Rhythmic Electrographic Discharge in Adults (SREDA) most
often appears: - ANS ✓suddenly in resting EEG
A posterior dominant rhythm reactive to eye closure first appears around: -
ANS ✓3-6 months
Fast Fourier Transform - ANS ✓mathematical method for determining the
sinusoidal components of a complex wave
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Bancaud Phenomenon - ANS ✓failure of the alpha rhythm to attenuate with eye
opening
a 14 year old female with history of body jerks in the morning presents
with first time service. what would you expect to see on the EEG - ANS ✓3-
6hz generalized polyspike and wave
Mu rhythm and alpha rhythm differ from each other in most ways except -
ANS ✓Frequency
An underlying lesion of white matter will more likely result in: - ANS ✓Focal
slowing
What is the value of recording a patient's maximal awake state - ANS ✓to
distinguish slowing from drowsiness
Infectious disease most frequently associated with periodic complexes in
EEG - ANS ✓Herpes simplex encephalitis
Photic driving is most common at what frequencies? - ANS ✓9-13hz
Bandwidth for routine EEG activity - ANS ✓1-70hz
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Sharp waves located at the vertex indicate what stage of sleep? - ANS ✓Stage
1 sleep
Xanax - ANS ✓increase beta activity
Bipleds what type of encephalopathy - ANS ✓anoxic encephalopathy
Tonic phase in GTC is characterized by: - ANS ✓Generalized voltage
suppression and muscle artifact
Low voltage rhythmic beta
According to ACNS guidelines, a pattern can qualify as rhythmic or periodic
as long as it continues for at least how many cycles? - ANS ✓6
By what age should EEG differentiation of the four stages of non-REM sleep
be identifiable in a child born at term? - ANS ✓6 months
At the onset of sleep, a 40-week conceptional age infant is most likely to
enter into which of the following stages of sleep? - ANS ✓Active
Sleep spindles should be synchronous by: - ANS ✓2 years
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What time constant would best display delta activity - ANS ✓1 second
Slow spike-and-wave complexes are characteristic of: - ANS ✓Lennox-
Gastaut syndrome
Which neurological syndrome may be associated with focal epilepsy? - ANS
✓Tuberous Sclerosis complex
Seizures with visual hallucinations such as flashing lights are most likely to
arise from the: - ANS ✓Occipital lobe
What is the most appropriate sampling rate that should be used for a HFF of
70hz, according to ACNS guidelines - ANS ✓210 p sec
Long time constant - ANS ✓LFF of .1hz
In deepening coma, triphasic waves are most likely to: - ANS ✓Disappear
Most appropriate sampling rate that should be used for a HFF of 70hz,
according to Nyquist theory - ANS ✓140 p/ sec
What montage would best display the amplitude of a left temporal spike? -
ANS ✓Left temporal to the contralateral ear
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