Electroencephalogram (EEG)

At Brisbane Neurology, we understand that undergoing medical tests can be daunting, especially when it involves the brain. Our team is here to provide you with expert, supportive care as you undergo an EEG test. Our goal is to ensure you feel comfortable and well-informed throughout your experience.

What is an EEG?

An EEG is a test that measures the brain’s electrical activity using small electrodes placed on the scalp. This non-invasive test records brain wave patterns, which can provide important insights into the functioning of the brain. During a routine EEG, these brain waves are captured over a short period, creating a snapshot of brain activity that can be useful for diagnostic purposes.

Conditions Diagnoses

An EEG is commonly used to diagnose neurological conditions, such Epilepsy and other seizures.

If a routine EEG does not reveal abnormal activity but epilepsy is still suspected, a sleep-deprived or prolonged EEG may be recommended to gain more information. In some cases, a normal EEG can help rule out seizures as the cause of these episodes. Your doctor’s referral will advise us which EEG they require you to have.

Types of EEGs Available at Brisbane Neurology

We offer a range of EEG services tailored to your diagnostic needs:

Routine EEG (20 minutes)
Sleep-Deprived EEG (1 hour)
Prolonged EEG (1 hour)

Our EEGs are suitable for adults and children over 16 years of age (we cannot perform testing on children under 16 years of age). If your doctor has requested an EEG, they may have also requested a consultation with one of our neurologists. At your consultation, the neurologist will discuss the results with you and coordinate with your referring doctor or create a treatment plan if needed. If your neurologist has requested we perform an EEG, we will send them the report and they will discuss the results of the test with you in your next consultation. Routine EEG appointments are available on Wednesdays, with options for urgent EEGs as required. Please reach out to us (via email) if you or your doctor have specific timing needs.

Risks Associated with an EEG

An EEG is a minimally invasive and generally safe procedure with no pain or other risks associated. Discs are placed on your scalp to record electrical signals. However, these discs do not produce signals, meaning there is no risk of electric shock.

Patients with a condition that causes seizures (such as epilepsy) may experience a seizure during the test. If you have any concerns about possible seizures, please discuss with one of our neurologists prior to your test.

Preparing for Your EEG

You will receive detailed instructions when your test is booked, however here are some general guidelines to help you prepare:

No caffeine for at least 8 hours before your test.
If you’re having a sleep-deprived EEG, you may be instructed on how much sleep to get the night before.
Bring a list of medications, including over-the-counter products and supplements.
Take your usual medications unless advised otherwise. The exception is sleeping medications. We need you to stay awake for Sleep Deprived EEG’s.
Wash your hair the night before the test and avoid any styling products afterward.
You cannot drive yourself to or from the appointment (especially if you are having a sleep-deprived EEG). Be sure to arrange safe transport home.

What to Expect During Your EEG

During the EEG, a trained EEG scientist will place electrodes on your scalp using a gentle paste. The test is entirely non-invasive. These electrodes monitor brain wave activity in different parts of the brain, displayed on a monitor.

Throughout the test, you may be asked to open and close your eyes at certain times, fall asleep (particularly for a sleep-deprived EEG), perform deep breathing (hyperventilation), or view flashing lights (photic stimulation).

Once the test is complete, the electrodes are removed with a special solution, though you may need to wash your hair again at home to fully remove any residue.

Driving and EEG Results

Experiencing a seizure or unexplained loss of consciousness can be unsettling, and it may result in temporary driving restrictions. Australian law mandates a non-driving period of at least six months following an episode of unexplained loss of consciousness. This period applies even if a cause other than epilepsy is suspected, and it’s crucial for ensuring public safety.

While a normal EEG can be reassuring, it doesn't grant immediate clearance to drive. The rules around driving and medical conditions are governed in Queensland by Austroads Fitness to Drive Guidelines, which apply to both private and commercial drivers.

PLEASE NOTE: Clearance to drive cannot be provided at the EEG appointment.

Supportive Care Every Step of the Way

Our team at Brisbane Neurology is dedicated to ensuring your EEG experience is as comfortable as possible. We’re here to answer any questions and provide you with clear, compassionate guidance as you undergo testing. Contact us today for more information or to schedule your EEG appointment.

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