EEG Testing in Columbia, MO: What to Expect at Your Appointment

An EEG, or electroencephalogram, is a painless, non-invasive test that records the brain’s electrical activity through small sensors placed on the scalp. On-site EEG testing helps evaluate seizure disorders, unexplained neurological symptoms, and other conditions affecting brain function in patients across Boone County and central Missouri.

If you have been scheduled for an EEG or are wondering whether you need one, you may have questions about what to expect. The test is usually simpler than people expect. This overview explains why EEGs are ordered, what happens during the appointment, how to prepare, and how the results help guide your care.

Why EEG Testing Is Done and Who Needs It

An EEG records patterns in the brain’s electrical activity. Unusual patterns can help doctors identify certain neurological conditions. A provider may order an EEG to evaluate:

• Seizure disorders and epilepsy, to look for signs of seizure activity and help identify where it begins in the brain
• Unexplained episodes of confusion, staring, or loss of awareness
• Sleep disorders linked to neurological conditions
• Changes in brain activity after a traumatic brain injury
• Encephalopathy, a condition that affects how the brain works, to help assess its severity
• Headaches in certain cases when seizure activity is suspected

We offer EEG testing as part of our neurology care in Columbia, MO⁠. On-site testing allows patients to have this evaluation without visiting a separate hospital facility.

How an EEG Is Performed: What the Appointment Looks Like

At Lordex Spine Center of Columbia, your EEG appointment may last approximately 45 to 90 minutes, depending on the type of EEG ordered. The technician will measure your head and mark the spots on your scalp where the electrodes will go. A special gel helps the electrodes make good contact with your scalp.

The electrodes are small metal discs attached to your scalp. They do not deliver electricity or cause pain. They only record the signals your brain already produces. Once the electrodes are in place, you will be asked to lie still and relax. The technician may ask you to open or close your eyes during the recording.

The technician may also ask you to breathe deeply and rapidly for a few minutes or look at a flashing light. These steps can help reveal unusual brain wave patterns. Deep breathing may cause brief lightheadedness or tingling. In rare cases, deep breathing or flashing lights can trigger a seizure in someone with epilepsy, so the technician monitors you throughout the test. The electrodes continue to record your brain activity without sending electricity into your body.

How to Prepare for Your EEG Appointment in Columbia, MO

Preparing for an EEG is simple. Wash your hair the night before or the morning of your appointment. Do not use conditioner, hairspray, oil, or other styling products. These products can prevent the electrodes from making good contact with your scalp and affect the recording.

Eat a normal meal before the test, but avoid caffeine on the day of your appointment. Skipping meals can lower your blood sugar and may affect the results. Continue taking your daily medications unless your provider tells you otherwise. If you need a sleep-deprived EEG, your provider will explain how much sleep to get the night before.

Wear comfortable clothing. You usually do not need to change for the test, but loose clothing can make it easier to relax. Ask your provider whether you need a ride to and from the appointment, especially if you will be limiting sleep or receiving a sedative.

How EEG Fits Into Your Overall Care at Lordex

An EEG is a test, not a treatment. The recording gives your provider at Lordex Spine Center of Columbia information to help plan your next steps. Normal results provide useful information, while unusual findings may help identify brain activity related to your symptoms.

After your EEG, your provider will explain the results and how they relate to your symptoms and care plan. The neurodiagnostic services at our Columbia clinic⁠ allow your provider to review EEG findings alongside other test results and examinations to better understand your neurological health.

For patients from Callaway County, Cooper County, and other communities around Boone County, on-site EEG testing in Columbia offers a nearby option. It may also help some patients avoid longer waits for testing elsewhere.

Frequently Asked Questions About EEG Testing in Columbia, MO

Does an EEG hurt?

No. An EEG is painless. The electrodes on your scalp only record electrical activity and do not deliver electricity. The gel may feel cool or sticky, and deep breathing during the test may cause brief lightheadedness.

How long does it take to get EEG results?

After your EEG at Lordex Spine Center of Columbia, a doctor trained to interpret EEGs reviews the recording. Your provider will explain the results, usually at a follow-up appointment, and let you know when to expect them.

Can a normal EEG rule out epilepsy?

No. A normal EEG does not rule out epilepsy because unusual brain activity may not appear during the test. If your provider still suspects epilepsy, they may recommend another EEG, a longer recording, or a sleep-deprived EEG.

Do I need to stop my medications before an EEG?

In most cases, you should continue taking your regular medications before an EEG. Your provider will tell you if any changes are needed.

Can children have EEG testing at Lordex Spine Center of Columbia?

Yes. The clinic offers EEG testing for children as part of its neurological services. Preparation instructions may differ for children, and your provider will explain them before the appointment.

Schedule EEG Testing in Columbia, MO

If you have been referred for an EEG or your provider recommends testing to evaluate neurological symptoms, Lordex Spine Center of Columbia offers on-site EEG testing for patients throughout Boone County and central Missouri. The test is painless and provides information that can help your care team better understand your symptoms and plan your care.

Call Lordex Spine Center of Columbia at (573) 443-0551 to schedule your EEG appointment or visit our page.

Last reviewed: October 2026