What is it?
A 24-hour EEG is an electroencephalogram carried out with an ambulatory (portable) recorder which is designed to record uninterruptedly for several hours – the usual standard is 24 hours of recording, with 19 electrodes.
How is it done?
The patient is connected to the recorder and can go to their home or usual place of work.
Preparation of the head by the technician is more time-consuming as the electrodes are placed one by one with an appropriate glue.
The patient can and should maintain activities as close to normal as possible during the registration day(s).
The electrodes are removed in the laboratory at the end of the test.
The 24-hour EEG is usually carried out on patients who have already had a routine EEG or even an EEG with a sleep test carried out previously.
Your doctor will know which type of test is right for you.
Where to do it?
You can carry out a 24-hour EEG via the NRD: Avenida Columbano Bordalo Pinheiro, nº 11-B, r/c, 1070 – 060 Lisboa (next to Praça de Espanha)