What is an
electroencephalograph (EEG) machine?
An EEG machine is a device that measures the electrical activity in
the brain. The electrical signals that come from the brain can help
the doctor identify what is wrong with the brain. However, the EEG
machine only measures electrical activity in the brain. There is
much about brain function that cannot be measured by the EEG. The
EEG machine may either be a separate piece of equipment or available
in the bedside monitor. The EEG machine obtains its measurements
through wires, called leads, connected to sensors (EEG pads) placed
on a patient's head.
When is an EEG machine used?
An EEG machine is used when the doctor wants to monitor the
electrical activity in the brain. This machine is used when the
doctor wants to see if the brain is functioning normally and to
monitor therapies that affect the brain.
Does use of an EEG machine hurt?
No.
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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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Electroencephalograph (EEG) Machine 
