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Exam (elaborations)

CLTM ASET | QUESTIONS AND ANSWERS | 100% VERIFIED

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CLTM ASET | QUESTIONS AND ANSWERS | 100% VERIFIED 2 basic montages used during electrode screening - 1) numeric order bipolar 2) referential imaging that measures brain synchronicity - coherence imaging type of software helpful for quantifying seizures in ICU/EEG - trending ...

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  • September 26, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Cltm.
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Mboffin
CLTM ASET | QUESTIONS
AND ANSWERS | 100%
VERIFIED

2 basic montages used during electrode screening - 1) numeric order bipolar
2) referential

imaging that measures brain synchronicity - coherence imaging

type of software helpful for quantifying seizures in ICU/EEG - trending

1st consideration when guarding against skin breakdown - electrode type

main MEG imaging techniques - -single current dipole (ECD)
-current density/distribution (MR-FOCUSS)
-beamformer (spatial filter)

MRI safe electrodes guard against - magnetic influence on electrodes

strengths of MEG - -correlates function and anatomy
-millisecond temporal resolution
-millimeter spatial resolution
-non-invasive

Phase II EEG quality is greatly improved by implantation of - grids for reference and
ground

only imaging technique that is useful for determining seizure focus - SPECT

MEG detects signals generated by - pyramidal neurons

weaknesses of MEG - -expensive
-requires magnetically shielded room
-requires helium

, True or False: a pedometer is a type of MEG detector - false

ACNS recommendation for the time frame of physician interpretation of LTM - read
data collection after it is complete

cooling below 32 degrees C increases risk of - -focal cerebral deficit
-infection
-coagulopathy
-arrhythmia

unable to form and store new memories - anterograde amnesia

local networks - -least expensive
-data cannot be viewed remotely
-are like most EMU setups

vertical eye movements will be out of phase with what - RIO/LIO

effect of benzos on EEG - increased rhythmic fast (25-35Hz)
decreased alpha voltage

Effect of Carbamazepine on EEG - mild alpha slowing
random theta

effect of topiramate on EEG - decreased alpha
increased theta and delta

highest incidence of epilepsy - over 60 years age group

amplitude scale of y-axis in amplitude EEG graphs - linear from 0-10mcv
logarithmic from 10-100mcv

seizures in critically ill with encephalopathy: frequency, duration and onset/offset -
slower frequencies
longer duration
less clearly defined onset, evolution and offset

olfactory aura - temporal lobe or uncus

fear/impending doom aura - limbic (frontotemporal)

deja vu/jamais vu - temporal lobe

recommended duration of cEEG for comatose TBI patient - 7 days

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