A multiple sleep latency test mslt provides an objective measure of your tendency to fall asleep. The mean sleep latency on the mslt is the most commonly used objective measure in the assessment of daytime sleepiness. Multiple sleep latency test mslt is a test that consists of a series of five, twentyminute nap periods scheduled two hours apart. The multiple sleep latency test mslt involves multiple trials during a day to objectively assess sleep tendency by measuring the number of minutes it takes. Between naps, you will stay in the sleep medicine department but must remain awake. You have been scheduled for an mslt to evaluate your sleep disorder.
The multiple sleep latency test mslt involves multiple trials during a day to objectively assess sleep tendency by measuring the number of minutes it takes the patient to fall asleep. The mslt is the standard way to measure your level of daytime sleepiness. During the mslt, you will be given 5 opportunities to nap throughout the day at 2hour intervals while electrical activity is recorded from the brain, eyes, and chin. Mslt multiple sleep latency test this is a test where you will have a series of 5 nap recording sessions throughout the day. The maintenance of wakefulness test mwt is a polysomnographic procedure for the evaluation of daytime somnolencewakefulness. Practice parameters for clinical use of the multiple sleep latency test and the maintenance of wakefulness test. Sleep services mslt instructions kaiser permanente. Colloquially known as the daytime nap study, mslt is also a standard tool used to diagnose idiopathic hypersomnia and narcolepsy. A multiple sleep latency test mslt is indicated in the evaluation of hypersomnia including narcolepsy and idiopathic hypersomnia auroraa, 2012.
The patient is given five chances to sleep during their customary awake period. Did the member have a previous mslt which was inconclusive for narcolepsy or idiopathic hypersomnia. The first part of your study will be a routine testing throughout the night. The experimental subjects, 444 patients from a sleep clinic, underwent a mean sleep latency test mslt and a maintenance of wakefulness test mwt which two tests were at most 10 days apart. Polysomnographic and multiple sleep latency test mslt. Sleep study multiple sleep latency test mslt mslt the multiple sleep latency test mslt is a study used to see how quickly you fall asleep in quiet situations during the day. Multiple sleep latency test overview of multiple sleep latency test.
The patient may be instructed to lie down in a dark room, with permission or a suggestion given to sleep mslt or to sit up in a dimly lit. Nap study multiple sleep latency test, mslt some patients will be asked to continue their study the following day to see how quickly they fall asleep in quiet situations during the day. A longitudinal followup study on multiple sleep latency. Multiple sleep latency test and maintenance of wakefulness test. The study used portable polysomnographic monitoring and multiple sleep latency tests to diagnose sleep pathologies. A standard mslt protocol that is consistent with aasm practice parameters ensures consistency and allows comparisons of results with published data and with data generated by other sleep programs. Original article underutilization of the mslt in sleepy patients with a short onset rem period soremp in the sleep clinic alyssa cairns a, richard bogan a, b, c a sleepmed, inc. It assesses an individuals ability to remain awake while resisting the pressure to fall asleep during soporific circumstances mitler et al. The night before your mslt you will have an overnight sleep study. For the mslt to be accurate, you will need to sleep at least six hours during the overnight sleep study. The test measures how much time elapses between starting to nap. The multiple sleep latency test mslt is a diagnostic tool that measures the time it takes an individual to fall asleep in ideal quiet conditions during the day. The clinical evaluation may include a relevant history and physical examination, appropriate laboratory studies, and other relevant diagnostic studies such as a previous sleep study or overnight pulse oximetry. The multiple sleep latency test mslt is a nap study used to assess how quickly a person falls asleep during the day.
Practice parameters for clinical use of the multiple sleep. A polysomnogram is a recording of brain waves, eye movements, muscle tone, and breathing across a night of sleep. To reschedule your study, call 708 3640261 ext 7766. The study included two sessions of overnight monitoring standard means of identifying sleep disorders, and performed multiple sleep latency testing, which was a series of at least four 20minute naps carried out in 2 hour. The testing involves a visit to a sleep center, which may consist of specially designated rooms in a hospital, sleep laboratory. Underutilization of the mslt in sleepy patients with a short. The multiple sleep latency test mslt is a sleep disorder diagnostic tool. The mslt will be performed immediately following polysomnography recorded during the patients major sleep period. To cancel or reschedule your appointment, please call summa sleep medicine centers central scheduling department at 330 9967711 mondayfriday from 8. People with excessive daytime sleepiness in whom narcolepsy is suspected are typically given a multiple sleep latency test mslt on the day following the overnight polysomnogram. Excessive sleepiness is when you are sleepy at a time and place when you should be awake and.
It is used to measure the time elapsed from the start of a daytime nap period to the first signs of sleep, called sleep latency. Multiple sleep latency test mslt is a sleep study, which is used for the diagnostic evaluation of patients with excessive sleepiness. A multiple sleep latency test mslt is an allday test that determines whether a person is experiencing excessive daytime sleepiness. Also known as a daytime nap study, the mslt is the standard tool used to diagnose narcolepsy and idiopathic hypersomnia. The test is based on the idea that the sleepier people are, the faster they will fall asleep. Practice parameters for clinical usc ofthe multiple sleep latency test and the maintenance ofwakefulness test. Guidelines for the multiple sleep latency test mslt. Forty narcoleptic patients were given the multiple sleep latency test, consisting of 20 min opportunities to sleep offered at 10. Multiple sleep latency test preparing for the mslt. The multiple sleep latency test mslt is an objective measure that can be used to quantify the severity of eds, with sleepiness measured by the speed of falling asleep when given multiple. These practice parameters were developed to guide the sleep clinician on appropriate clinical use of the multiple sleep latency test mslt, and the maintenance of wakefulness test mwt.
At 2 hour intervals during the day you will be asked to lie down in a comfortable, darkened room, relax and try to take a 20 minute nap. Has the patient had a previous diagnostic sleep study. Evidence tables the clinical use of the mslt and mwt evidence table i. Standard 2 the mslt may be indicated as part of the evaluation of. The study included two sessions of overnight monitoring standard means of identifying sleep disorders, and performed. There will be an approximate 2 hours of break between each nap sessions. Mslts are appropriate for complaints of poor nighttime sleep andor excessive daytime sleepiness, including narcolepsy. Testing usually consists of an overnight stay in a sleep laboratory for a test called a polysomnogram, followed the next day by the multiple sleep latency test commonly known as the mslt. Multiple sleep latency test preparing for the mslt sleep. The multiple sleep latency test mslt is used in the assessment and diagnosis of disorders of excessive somnolence and to evaluate daytime sleepiness in relation to various therapeutic or.
Multiple sleep latency test american sleep association. An overnight sleep study will be used to determine if another sleep disorder such as obstructive sleep. Standardization of test conditions is critical for obtaining valid results. Diagnosis and management of childhood obstructive sleep apnea syndrome. Pdf guidelines for the multiple sleep latency test mslt. A hsat is considered to be one study, whether performed during a single. Anita bhola, md, fccp clinical director abim board certified. Multiple sleep latency alone measures the degree of excessive daytime sleepiness, and thus produces problems of falsepositive test results in patients with insufficient sleep syndrome or obstructive sleep apnea. The clinical use of the mslt and mwtaasm practice parameters. Self study for sleep technology first sleep school. Multiple sleep latency test and maintenance of wakefulness. The multiple sleep latency test mslt and the maintenance of wakefulness test mwt use objective measures to quantify sleepiness. Multiple sleep latency testing mslt is an objective measurement of how long it takes you to fall asleep.
Jan 14, 2019 a multiple sleep latency test mslt is an allday test that determines whether a person is experiencing excessive daytime sleepiness. The diagnostic equipment used for a mslt is less extensive than the nighttime study. Sleep logs may be obtained for 1 week prior to the mslt to assess sleep wake schedules. Mslt protocol purpose the mslt is intended to measure sleep tendency under standardized conditions in the absence of external alert factors. Underutilization of the mslt in sleepy patients with a. Occasionally daytime studies are performed night shift workers, mslt and mwt during a polysomnogram, a sleep technologist, will hook you up to electrodes and wires so that they can simultaneously record multiple biological functions during your sleep, on a digital recording. If you have sleep apnea, you will sleep with cpap the rest of the night. Sleep onset rapid eye movement sorem in sleep disorder. During a routine mslt, an individual is given five nap trials that are separated by two hour intervals. Multiple sleep latency test mslt overview and facts. A multiple sleep latency test is always performed the day after and overnight sleep study.
The test measures how much time elapses between starting to nap and the first signals of sleep, called sleep latency. The rendering site must be a qualified provider of service per health plan policy. The oxford sleep resistance osler test, which is a simplified variation of the mwt, is another objective that can be used to indirectly quantify sleepiness. A longitudinal followup study on multiple sleep latency test. Sleep rooms should be dark and quiet during testing. Polysomnographic and multiple sleep latency test mslt description. A hsat is considered to be one study, whether performed during a single night or during two or more consecutive nights. Chervin, in principles and practice of sleep medicine sixth edition, 2017. Mslt is a test with four or five nap opportunity tests in which the subject rests in a quiet, darkened room and the latency to rapid eye movement rem sleep is determined by standard electrophysiological means. Mslt was a daytime test administered after a night in the sleep lab.
Yes no, however an attended sleep study is planned in conjunction with this procedure. They will be asked to attempt to nap for approximately 20 minutes every two hours, over an 8 hour period. Anita bhola, md, fccp clinical director abim board. The setup is similar to that used for a polysomnogram. It is recommended that you get 8 hours sleep every night for 2 weeks prior to your sleep study and make sure to get a good nights sleep the night before. The mslt consists of five nap opportunities performed at two hour intervals. Multiple sleep latency test mslt and maintenance of.
The multiple sleep latency test mslt tests for excessive daytime sleepiness by measuring how quickly you fall asleep in a quiet environment during the day. In a large study of patients with sleep disorders, mwt sleep latencies were found to have a low but statistically significant correlation with the msl on the mslt. Multiple sleep latency test mslt is a daytime study which involves a series of naps. Evidence tables the clinical use of the mslt and mwt. The clinical use of the mslt and mwt sleep organization. If you have special dietary needs please bring them with you. As such, this study aimed to 1 evaluate the rate of eventual mslt testing for those with a soremp on routine psg when the phenomenon occurred in the absence of potential explanatory factors and 2 quantify the stability of the soremp phenotype. These recommendations replace those published in 1992 in a position paper produced by the american sleep disorders association. It is recommended, though not required for this course, that the student have a general knowledge of medical terminology, safety, verbal. The patient may be instructed to lie down in a dark room, with permission or a suggestion given to. You will be monitored with several skin sensors that record brain waves, eye movements, heart rate and heart activity.