EEG Testing

Opening Hours

Monday – Friday:

8:00am – 5:00pm






205 Woodhew Dr. Woodway, TX 76712

(254) 399-9291

EEG Testing

EEG Testing FAQs

What is an EEG test?

– An EEG test, or an electroencephalogram test, is used to find problems related to electrical activity of the brain by tracking and recording brain wave patterns. It is a noninvasive and painless test involving small metal discs with thin wires, or electrodes, being placed on the scalp. The electrodes send signals to a computer, which records the results. The physician will then inform the patient of the test results, its meaning, and what to do next.


What is an EEG test used to diagnose?

– The test is used to help diagnose conditions such as:

  • Seizures
  • Epilepsy
  • Head injuries
  • Dizziness
  • Headaches
  • Brain tumors
  • Sleeping problems
  • Confirming brain death


What does an abnormal EEG mean?

– In general, an abnormal EEG could mean:

  • Generalized seizures
  • Brain waves that have an abnormal frequency, height, or shape
  • Any brain wave that shows up in a way that it should not


– Other ways that abnormalities show up in an EEG are:

  • Abnormal bleeding or hemorrhage
  • An abnormal structure in the brain (brain tumor)
  • Tissue death (due to a blockage in blood flow or cerebral infarction)
  • Drug or alcohol abuse
  • Head injury
  • Migraines
  • Seizure disorder (epilepsy)


– If you have an abnormal EEG, your doctor will explain the significance of the abnormality and walk you through the next steps in your treatment plan going forward.


How do I prepare for an EEG?

– Before the test, it is important that you do the following:

  • Wash your hair the night before
  • DO NOT put products in your hair on the day of the test (e.g., sprays, gels, etc.)
  • Ask your doctor if you should stop taking any medications before the test


How long does it take to get an EEG?

– Typical procedures vary usually within the span of 30 minutes to 2 hours in its entirety. This is because electrode placement can take anywhere from 20 minutes to an hour.

– If you have an ambulatory EEG, brain activity is recorded for at least 24 hours.