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Maintenance of Wakefulness Test (MWT)

The MWT test is used to measure how alert you are during the day. The test monitors your alertness, any changes in alertness, and the time it takes for you to fall asleep.

The test will take most of the day. For the test, a nurse will attach small electrodes on your scalp, face and legs to monitor your alertness. During the day, there will be four registration sequences of approximately 40 minutes, during which you will sit comfortably in a chair in a low-lit, quiet room and try to stay awake. Each sequence will be recorded on video.

You will be served lunch during the day. After the test, the nurse will remove the electrodes and clean your skin, but you may want to wash your hair.

To prepare for the test, you will be asked to keep a sleep diary for two weeks. You should sleep as regularly as possible for a week before the test. Make sure your hair and scalp are clean on the day of the test. Discontinue the use of any stimulating medication two weeks before the test, in accordance with the instructions of the attending physician.

Our clinical neurophysiology specialists will provide a statement on the registered data.

Preparing for your examination