What is
electroencephalography?
Electroencephalography is the generation of a tracing or graph of
brain waves, which represent the electrical activity of the brain.
What is an electroencephalogram or
electroencephalograph (EEG)?
An electroencephalogram or electroencephalograph (EEG) is a graphic
record of the electrical activity of the brain.
What is an electroencephalograph machine?
An electrocardiograph machine is a device that measures and records
electrical activity in the heart by the use of ECG pads placed on
the chest and connected to wires, call leads. The leads are
connected to a bedside monitor where the information is displayed.
ECGs are usually measured in at least one view (i.e., one line on
the monitor). Many doctors and nurese want more than one view, often
as many as twelve views, also called leads. To measure these
different views, ECG pads are placed on several parts of the body.
The nurse determines where to place these pads based on the view of
the heart that is desired.
What information does the EEG provide?
The EEG provides information about the electrical activity of the
brain. From this information the doctors can tell if a patient is
having seizures (convulsions), decreased brain function, or normal
brain function. It is a helpful tool to pinpoint brain function
problems.
How long is an EEG used?
Depending on the circumstances, only a single recording may be made
or the device may be used continuously for several days.
Does having an EEG hurt?
No.
Are there any potential complications
associated with having an EEG?
There are no significant complications associated with having an
EEG.
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An electroencephalograph machine making an
electroencephalogram (EEG) |
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Patient with EEG pads and leads in place |
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Electroencephalography 
