EEG
Alternate Names : Brain Wave Test, Electroencephalogram
Definition
An electroencephalogram (EEG) is a test to detect abnormalities in the electrical activity of the brain.
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Why is the Test Performed?
EEG is used to help diagnose the presence and type of seizure disorders, to look for causes of confusion, and to evaluate head injuries, tumors, infections, degenerative diseases, and metabolic disturbances that affect the brain.
It is also used to evaluate sleep disorders and to investigate periods of unconsciousness. The EEG may be done to confirm brain death in a comatose patient.
EEG cannot be used to "read the mind," measure intelligence, or diagnose mental illness.
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