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