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Brain Brain wave monitor

Overview Risks Results

EEG

Alternative Names: Electroencephalogram; Brain wave test Normal Values: Brain waves have normal frequency and amplitude, and other characteristics are typical. What abnormal results mean: Text Continues Below Abnormal findings may indicate the following: Seizure disorders (such as epilepsy or convulsions) Structural brain abnormality (such as a brain tumor or brain abscess) Head injury, encephalitis (inflammation of the brain) Hemorrhage (abnormal bleeding caused by a ruptured blood vessel) Cerebral infarct (tissue that is dead because of a blockage of the blood supply) Sleep disorders (such as narcolepsy) EEG may confirm brain death in someone who is in a coma. Additional conditions under which the test may be performed: Arteriovenous malformation (cerebral) Benign positional vertigo Cerebral aneurysm Complicated alcohol abstinence (delirium tremens) Creutzfeldt-Jacob disease Delirium Dementia Dementia due to metabolic causes Febrile seizure (children) Generalized tonic-clonic seizure Hepatic encephalopathy Hepatorenal syndrome Insomnia Labyrinthitis Meniere's disease Metastatic brain tumor Multiple sclerosis Optic glioma Partial (focal) seizure Partial complex seizure Petit mal seizure Pick's disease Senile dementia (Alzheimer's type) Shy-Drager syndrome Syphilitic aseptic meningitis Temporal lobe seizure

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