Question 1

How do I prepare for a Electroencephalogram (EEG)?

Accepted Answer

Painless test that records the brain's electrical activity using small metal discs attached to the scalp.

Question 2

What do I need to know before a Electroencephalogram (EEG)?

Accepted Answer

• **Definition:** A painless test that records the electrical activity of the brain using small metal discs attached to the scalp.
• **Fasting:** No fasting is necessary. You can eat normally and drink water. In fact, skipping meals is not recommended, as low blood sugar could alter the results. However, you must strictly avoid consuming drinks with caffeine (coffee, tea, colas, or energy drinks) between 8 and 12 hours before the study.
• **Medication:** You should maintain and take your usual medication. If you take drugs for sleep, sedatives, or relaxants, it is very important that you inform the staff, remembering that stopping or adjusting any treatment must always be discussed beforehand with your doctor.
• **Clothing and Accessories:** We recommend using comfortable and loose clothing, as you will remain lying down and relaxed during the study. There is no strict metal restriction for the body in general, but you should avoid wearing large earrings, bulky necklaces, and, above all, any hair accessories (clips, hairpins, headbands) that prevent the sensors from being placed correctly.
• **Specific Requirements:** The most important and mandatory requirement is to arrive with freshly washed and completely dry hair. Wash your head only with shampoo; it is strictly forbidden to use conditioner, masks, gels, foams, hairsprays, or oils, as these products prevent the electrodes from adhering to the scalp. Additionally, if your doctor has asked for an "EEG with sleep deprivation," you will have to sleep fewer hours than usual the night before (or not sleep at all) and it will be mandatory that you be accompanied by an adult for your safety.
• **Expected discomfort or pain from the test:** It is a completely safe, non-invasive procedure and causes absolutely no pain; you will not feel any type of electric current. The only real discomfort is that at the end of the test your hair will be somewhat sticky due to the special paste or gel used to fix the discs, but this is easily removed by washing your head with warm water and shampoo when you get home. During the test, you will be asked to breathe fast or look at a flashing light, which can make you slightly dizzy for a few seconds.

Question 3

What do I have to do before a Electroencephalogram (EEG)?

Accepted Answer

• **Definition:** A painless test that records the electrical activity of the brain using small metal discs attached to the scalp.
• **Fasting:** No fasting is necessary. You can eat normally and drink water. In fact, skipping meals is not recommended, as low blood sugar could alter the results. However, you must strictly avoid consuming drinks with caffeine (coffee, tea, colas, or energy drinks) between 8 and 12 hours before the study.
• **Medication:** You should maintain and take your usual medication. If you take drugs for sleep, sedatives, or relaxants, it is very important that you inform the staff, remembering that stopping or adjusting any treatment must always be discussed beforehand with your doctor.
• **Clothing and Accessories:** We recommend using comfortable and loose clothing, as you will remain lying down and relaxed during the study. There is no strict metal restriction for the body in general, but you should avoid wearing large earrings, bulky necklaces, and, above all, any hair accessories (clips, hairpins, headbands) that prevent the sensors from being placed correctly.
• **Specific Requirements:** The most important and mandatory requirement is to arrive with freshly washed and completely dry hair. Wash your head only with shampoo; it is strictly forbidden to use conditioner, masks, gels, foams, hairsprays, or oils, as these products prevent the electrodes from adhering to the scalp. Additionally, if your doctor has asked for an "EEG with sleep deprivation," you will have to sleep fewer hours than usual the night before (or not sleep at all) and it will be mandatory that you be accompanied by an adult for your safety.
• **Expected discomfort or pain from the test:** It is a completely safe, non-invasive procedure and causes absolutely no pain; you will not feel any type of electric current. The only real discomfort is that at the end of the test your hair will be somewhat sticky due to the special paste or gel used to fix the discs, but this is easily removed by washing your head with warm water and shampoo when you get home. During the test, you will be asked to breathe fast or look at a flashing light, which can make you slightly dizzy for a few seconds.

General instructions for Electroencephalogram (EEG)

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