Electroencephalogram (EEG) is a diagnostic test that records electrical activity in the brain, which is used to identify neurological changes, such as seizures or episodes of impaired consciousness, for example.
Usually, this is done by placing small metal plates in the hair, called electrodes, which are connected to a computer that records electrical waves, being widely used since this does not cause pain and can be done in anyone.
- The electroencephalogram could be done both by looking.
- Deciding.
- With the person shining.
- During the course.
- Depending on the onset of seizures.
- That the problem being studied may also require maneuvering to activate activity such as breathing.
- Exercises or the use of a pulsed patient light.
The electroencephalogram should be requested by a neurologist and is generally used to identify and diagnose neurological disorders, such as:
Any electroencephalogram can be performed, in the case of absolute contraindications, however, it is recommended to avoid it in people with skin lesions in the hair or pediculosis (lice).
The common electroencephalogram is achieved by applying electrodes, a conductive gel in the areas of the hair, so that brain activities are captured and recorded by a computer. During the exam, your doctor may indicate maneuvering to activate brain activity and increase sensitivity. hyperventilation with rapid breathing, placing a pulsed light in front of the patient.
In addition, the review may hack in different ways, such as
To identify and diagnose diseases, your doctor may use imaging tests, such as MRI or CT, that are more sensitive to detect changes such as nodules, tumors, or bleeding, such as, as best directed, and how CT and MRI are performed.
In order to prepare for the encephalogram and improve its effectiveness in detecting neural changes, it is necessary to avoid medicines that alter brain function, such as sedatives, antiepileptics or antidepressants, 1 to 2 days before the medical examination, do not consume beverages containing caffeine. , such as coffee, including chocolate, 12 hours before the test, as well as avoiding the use of accepted creams or sprays on the hair and the day of the test.
In addition, if the electroencephalogram is done during the test, your doctor may ask the patient to take 4 to 5 hours the night before to facilitate a full exam during the exam.