Description of Test
You will arrive in the evening. You will be given time to relax in the room where you will sleep. Electrodes will be attached to your head, legs, and chest. Other monitors are placed around your chest, near your nose and mouth, and on your finger. You will be able to read and relax again until your bedtime.
For most of the night, you will be able to move and turn during sleep. However, you may be asked to try to sleep in a certain position for part of the night. You will be observed by video during the night. This will be done in case sensors come loose or need to be removed for you to go to the bathroom. Sometimes, it is clear during the test that you can benefit from an intervention, such as
continuous positive airway pressure
(CPAP). This intervention may be started midway through the night.
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Your doctor may ask for an additional test for narcolepsy. The test is known as The Multiple Sleep Latency Test (MSLT). You will need to stay for part of the next day. You will be asked to nap for up to 20 minutes every two hours. The time it takes you to fall asleep and the time it takes you to go into deep sleep will be measured.
Your sensors will be removed in the morning. In most cases, you will be able to go home.
After the procedure, be sure to follow your doctor's
Results from this test may be ready right away. If not, then they are most often available within two weeks. Any abnormal breathing or leg movements during sleep will be noted. Your doctor will review the results and discuss them with you.