24-hour EEG (electroencephalogram)

A 24-hour EEG (elec­troen­cephalo­gram) test mea­sures elec­tri­cal activ­i­ty in your brain dur­ing a 24 hour time frame. An EEG test may detect abnor­mal­i­ties in the brain such as epilep­sy, seizures, Alzheimer’s dis­ease, nar­colep­sy, encephalopa­thy and toxic/​metabolic events.