Cataplexy test5/23/2023 ![]() Alternatively, they may try other tests to rule out other explanations. If the results from the first PSG and MSLT do not reveal anything but a person continues having symptoms that suggest narcolepsy or idiopathic hypersomnia, a doctor may decide to try these procedures again. The individual will then have to remain awake for 2 hours, and the process will repeat three or four times until the MSLT is complete.Īfter the sleep study, a person will have a follow-up appointment with a sleep specialist to discuss the results. However, if the person could not fall asleep, the nap trial will end after 20 minutes. The MSLT will measure how long it takes a person to fall asleep and how long it takes them to reach REM sleep.Īfter 15 minutes of sleep, the technologist will wake the person. The MSLT nap trial begins as soon as the lights go off. They will then turn down the lights and observe the person via a camera from a nearby room. The technologist will ask the individual to move their head and eyes and clench their teeth to test the sensors. The sensors show when the person is asleep or awake and transmit data to show when they are in rapid eye movement (REM) sleep. The sensors connect to a computer via wires. ![]() This portion of the study typically lasts most of 1 day, during which a person will take four or five scheduled naps about 2 hours apart.Īt the start, a sleep technologist will gently place sensors onto the person’s face and head. ![]() They might ask the person to fill out a questionnaire about their sleep.Īfter the sleep study, a person can undergo an MSLT. In the morning, the technologist will remove the sensors. If the person needs to use the bathroom or a sensor comes loose, a technologist will assist.Īlthough a person may not be able to sleep as well during the study as they would at home, this should not affect the results, as a doctor does not need a person to sleep for the full 8 hours to make a diagnosis. When it is time to sleep, the technologist will turn off the lights and monitor the individual from a nearby room through a low light video camera. A doctor or technologist will ask the person to move their limbs, move their eyes, and clench their teeth at the start of the study to ensure that the sensors are working.Ī person can read, watch television, or otherwise entertain themselves before nighttime. The person will still be able to move around, as the sensors attach to long wires that allow for mobility. A person will usually need to stay overnight at a sleep center or in a hospital room.įor the test, a sleep technologist will use tape or glue to attach sensors to the person’s body to monitor them while they sleep. This sleep study provides an evaluation of the person’s nighttime sleep. Doctors typically perform a PSG before an MSLT.
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