GE CARESCAPE - EEG troubleshooting

EEGandauditoryevokedpotentials
●ECG:Cardiacelectricalactivitycanaffect
theEEGwaveform.
●EMG:Activationoffrontalmusclescan
causehighfrequencyinterferenceinthe
EEG.
EEGtroubleshooting
ProblemSolution
WhatcanIdoifthesignallooksnoisyandthereisa
messageindicatingartifact?
Electrodesarepoorlyconnected,orelectrical
interferenceiscouplingtoelectrodecables.
●Checkthattheelectrodesareproperlyconnected
andnotdriedout.
●Checktheelectrodes’contactwithskin.
●Performelectrodeimpedancecheck.
●Calmthepatientsincefrontalmuscleactivitycan
causeartifact
●Removesourcesofexternalelectricalnoise(for
example,somelamps)fromthevicinityofthe
patient’shead.
●ECGmaycauseartifact;changeelectrode
positioning.
●Checkthattherearenottwoidentical
measurementmodulesinthesystem.
WhyareallEEGwaveformsnotdrawnevenif
electrodesandcablesareOK?
Thenumberofchannelsinthemontageissmaller
thanthenumberofchannelsconnectedtothe
patient.
386CARESCAPEModularMonitors2062971-001