II.P ACNS Guidelines and terminology Flashcards
PERIODIC DISCHARGES
A) Uniform morphology without a regular interval between consecutive waveforms.
B) Must have at least 4 phases with waveforms lasting more than 0.5 seconds.
C) Seen at irregular intervals having a cycle length varying by more than 50%.
D) Seen at nearly regular intervals and having a cycle length varying by less than 50%.
Seen at nearly regular intervals and having a cycle length varying by less than 50%.
During an ECI recording, what is the highest sensitivity that must be included in the recording?
A) 2 uV/mm
B) 1 uV/mm
C) 5 uV/mm
D) 3 uV/mm
2uV/mm
According to the Adult ACNS EEG Terminology, a pattern that is bilateral, bisynchronous and asymmetric, even if it has a restricted field, is termed
A) generalized
B) lateralized
C) multifocal
D) diffuse
generalized
Electrocerebral inactivity is defined as no EEG activity over
A) 5 microvolts
B) 2 microvolts
C) 1 microvolts
D) 7 microvolts
2 microvolts
According to the Adult ACNS EEG Terminology, a pattern that has at least three independent lateralized patterns with at least one in each hemisphere is
A) multifocal
B) focal
C) lateralized
D) bilateral independent
multifocal
According to the Adult ACNS EEG Terminology, a pattern can qualify as rhythmic or periodic as long as it continues for at least how many cycles?
A) 6
B) 8
C) 3
D) 4
6
MARKED AMPLITUDE ASYMMETRY
A) Consistent asymmetry in amplitude on a BIPOLAR recording of LESS than 50% amplitude.
B) Consistent asymmetry in amplitude on a REFERENTIAL recording of MORE than 50% amplitude.
C) Consistent asymmetry in amplitude on a REFERENTIAL recording of LESS than 50% amplitude.
D) Consistent asymmetry in amplitude on a BIPOLAR recording of MORE than 50% amplitude.
Consistent asymmetry in amplitude on a REFERENTIAL recording of MORE than 50% amplitude.
According to ACNS guidelines, EEG recordings should include a minimum of ___ channels and ___ electrodes.
A) 20; 21
B) 18; 15
C) 16; 25
D) 16; 21
16; 21
