EEG (Electroencephalogram)
Records the brain's electrical activity to diagnose epilepsy and other conditions.
An EEG records the electrical activity of the brain using small sensors placed on the scalp. It is a painless, non-invasive test that is especially useful in diagnosing epilepsy, evaluating blackouts, and assessing certain brain disorders.
Preparation
- Wash your hair the night before; avoid oil or gel
- Continue your regular medication unless told otherwise
- Sleep may be restricted beforehand for a sleep-deprived study
- Avoid caffeine on the day of the test
The procedure
Soft sensors are gently attached to the scalp with a special paste. You will relax quietly, and may be asked to breathe deeply or look at a flashing light. The recording is completely painless and takes about 30–45 minutes.
Benefits
- Non-invasive and painless
- Key test for diagnosing epilepsy
- Helps evaluate blackouts and altered awareness
- Guides safe medication decisions