+94-37 223 2365
info@sethsevanahospital.lk
No: 226, Colombo Road, Kurunegala.
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Technician attaching EEG electrodes to patient
Neurology Department

EEG Test
Mapping Brain Activity.

An advanced, non-invasive window into your brain's communication. We measure electrical impulses to diagnose seizures, sleep disorders, and neurological conditions with precision.

Understanding the EEG

An electroencephalogram (EEG) is a specialized test that detects electrical activity in your brain using small, flat metal discs (electrodes) attached to your scalp.

Your brain cells are constantly communicating via electrical impulses—even when you are asleep. This activity shows up as wavy lines on an EEG recording.

It is one of the main diagnostic tests for epilepsy and plays a vital role in diagnosing other brain disorders. It is safe, painless, and does not put any electricity into your body.

Epilepsy & Seizures

The most common use is to detect seizure activity and type.

Sleep Disorders

Diagnosing sleep issues like narcolepsy or insomnia.

Brain Function

Assessing activity after head injury, inflammation, or stroke.

Confusion

Investigating periods of unconsciousness or memory loss.

Patient Guide

Preparing for your EEG

To ensure a clear reading, please follow these simple steps before your appointment.

Clean Hair

Wash your hair the night before or the day of the test. Do not use any conditioner, hair cream, spray, or styling gels. These products make it hard for the sticky patches to adhere to your scalp.

Avoid Caffeine

Avoid food or drinks containing caffeine (coffee, tea, cola, chocolate) for at least 8 hours before the test, as it can alter brain wave patterns.

Medications

Take your usual medications unless instructed otherwise. If you are supposed to sleep during the EEG, your doctor may ask you to sleep less or not at all the night before.

Expert Neurological Care.

Performed by skilled technicians and analyzed by consultant neurologists.

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