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How to Prepare

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Referrals & Appointments

EEG and EMG Services
630-527-3382

Preparing for your EEG Appointment

Your scalp and hair should be free of excess oil.

  • Wash and thoroughly dry your hair the evening prior to your scheduled appointment
  • Make sure that you hair is free of hair styling products (mousse, lotion, styling hair spray)

Follow your normal medication routine, unless instructed otherwise by your physician

  • It may be necessary for you to sleep during your EEG procedure.
  • Adjust your sleep schedule the evening prior to your EEG procedure to midnight to 4:00 a.m.,
  • Or try to sleep 2-3 hrs less than normal
  • This will aid in inducing sleep at the time of your EEG procedure

Avoid ingesting any caffeine a minimum of 12 hours prior to your scheduled appointment.

Frequently Asked Questions about EEG Testing

Why would my doctor order an EEG?
An EEG test is performed to aid in the diagnosis of a variety of neurological disorders, such as, headaches, dizziness, seizure disorders, strokes, brain tumors and degenerative brain disease

What to expect during your visit
The technologist/technician will escort your to a testing room that is equipped with a small hospital bed and the necessary equipment needed to complete the test. A CD player is available to play music for comfort.

The technologist/technician will instruct you to remain in a sitting position during the application of the electrodes needed to complete the testing procedure. This is a non-invasive procedure and the electrodes will only be applied to the scalp area and the surface of your skin.

The technologist/technician will begin by measuring the head to ensure proper placement of the electrodes using a cloth measuring tape and a wax pencil; this measuring system is known as the 10-20 system of electrode placement. The technologist/technician will then prep the skin where the electrodes will be applied to ensure that the skin is free from excess oil.

The technologist/technician will be applying 20 electrodes and 2 EKG electrodes to monitor your heart rate. The technologist/technician uses an adhesive method to adhere the electrode to the skin. The electrode is then plugged into a small headbox that has a cable connected to a computer; this will allow the technologist/technician to acquire the data during the procedure

Once all of the electrodes have been placed, the technologist/technician will instruct you to lie on the bed.

How long will the test last?
The setup process for an EEG procedure can last anywhere from 30-40 minutes. Depending on the type of test ordered by your physician, the duration of your visit can be anywhere from 45 to 90 minutes. A routine EEG procedure visit can last up to 90 minutes in duration, which would include procedure setup time and the duration of the routine EEG (20-25 minutes).

An Ambulatory EEG procedure consists of the patient setup time and this visit typically lasts approximately 30-40 minutes. Patients returning for an Ambulatory EEG "unhook", this visit routinely lasts 15-20 minutes in duration, as it only involves the removal of the electrodes.

Removing the electrodes
The technologist/technician will take great care to remove all remnants of any adhesives used from the hair and scalp. The paste used during the setup of the electrodes is water soluble and can be washed out using warm water and shampoo. The technologist/technician will use warm water and a wash cloth to remove the paste from the areas of the scalp and skin it was applied to. The technologist/technician may also use an oil based adhesive remove to remove any traces of adhesive from the surface of the skin.

What happens after my EEG?
A board certified neurologist will review the acquired data and dictate a report. The results will be faxed to the referring physician office within 3-5 business days.




 

(630) 527-3000

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Edward Hospital & Health Services
801 S. Washington, Naperville, IL 60540 • (630) 527-3000

Naperville • Plainfield • Bolingbrook • Oswego • Woodridge
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