Electroencephalogram (EEG): What you need to know - 10/2026

If this is an emergency call 911.

Electroencephalogram (EEG): What you need to know

PDFs

Click on your preferred language below to access/print your document

Abstract

This handout explains an electroencephalogram (EEG), a procedure that measures brain waves. It includes instructions to follow the day before and the day of an EEG, what to expect during the test, and how to get test results. A map to the EEG/Evoked Potential Lab is also included.

Author

EEG/Evoked Potential Lab

Publisher

University of Washington Medical Center

Date Published (original date)

1998

Revision Date

10/2026

Print Abstract

General Subject

Diagnostic Tests

Neurological Disorders

Patient Care Procedures & Instructions

Specific Subject/Keyword

Electroencephalography

Brain

Neurological Disorders

Languages

Spanish

Vietnamese

English

PE Number

PE0028