Which artifacts on EEG are caused by electrostatic changes?

Updated: Oct 09, 2019
  • Author: Selim R Benbadis, MD; Chief Editor: Helmi L Lutsep, MD  more...
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Answer

Answer

Movement of other persons around the patient can generate artifacts, usually of capacitive or electrostatic origin. Avoid this type of artifact as much as possible. If avoidance is not possible, as in the ICU and the operating room, place proper notation on the records.

Another artifact, probably due to electrostatic changes on the drops, can be introduced by a gravity-fed intravenous infusion. Morphologically this appears as spike transient potentials at fixed intervals that coincide with drops of the infusion.


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