Routine EEG

Electroencephalography (EEG) examines/records the brain activity. It is performed for multiple reasons such as epilepsy, headaches and memory/cognitive issues being the main reasons.

It is performed by placing 21 recording electrodes on the head for the brain activity and 2 on the chest for the heart beat. The electrodes are placed on by first abrading the skin (rubbing to reduce dead skin and natural oils) and then the electrodes are placed on with a special conductive paste and micropore where there is no hair to hold it in place. The test is performed with eyes closed and the patient is instructed when needed to do things like opening closing of eyes, hyperventilation and is shown a strobe light. There is no side effects to the test except for dirty hair.

Preparation:

• • Clean hair (no hair spray, gel, oil etc)
  • Do not drink coffee or other caffeine products
  • Always take medications as per normal unless indicated

The test should take 45 mins to an hour.

Sleep Deprived EEG

A sleep deprived EEG is also requested on occasion so that the doctor can get added information if needed. The night before the test, you will be instructed to stay up until 2am, sleep until 6am, then stay awake until your appointment. The study is performed the same way as a routine EEG test just that one is expected to sleep during the recording.

Preparation:

• • Clean hair (no hair spray, gel, oil etc)
  • Do not drink coffee or other caffeine products
  • Always take medications as per normal unless indicated
  • Stay up until 2am, sleep until 6am, stay awake until your test appointment.

A sleep deprived EEG takes 1.5 hours.