multiple sleep latency test


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mul·ti·ple sleep la·ten·cy test

a test of the propensity to fall asleep, done by performing polysomnography during multiple brief opportunities to sleep.

multiple sleep latency test (MSLT)

a test of the propensity to fall asleep, often used to diagnose narcolepsy. The subject is given five 20-minute nap opportunities at 2-hour intervals, usually after an overnight polysomnogram. The mean latency to sleep onset and the stages of sleep that occur are determined from polygraph records. Well-rested adults have a mean MSLT of 15 minutes. A mean MSLT of less than 5 minutes indicates severe hypersomnia.

mul·ti·ple sleep la·ten·cy test

(mŭl'ti-pĕl slēp lā'tĕn-sē test)
Sleep study that involves 15- to 20-minute nap periods every 2 hours over 8-10 hours, with polysomnography during each nap.

multiple sleep latency test

A test to diagnose any of several causes of excessive daytime sleepiness. Causes include insomnia, narcolepsy, and obstructive sleep apnea.
References in periodicals archive ?
The patient was investigated for different prediagnoses and was eventually diagnosed as having narcolepsy and cataplexy through polysomnography and multiple sleep latency tests thirteen months after the first presentation.
PSG and multiple sleep latency tests (MSLT) were performed during their episodes and the results were evaluated.
Sensitivity and specificity of the multiple sleep latency test (MSLT), the maintenance of wakefulness test and the epworth sleepiness scale: failure of the MSLT as a gold standard.
Pharmacodynamic Profile of Three Novel Formulations of Zaleplon in Normal Volunteers as Evaluated by the Multiple Sleep Latency Test
Practice parameters for clinical use of multiple sleep latency test and the maintenance wakefulness test.
One of the primary outcomes used was the Multiple Sleep Latency Test (MSLT), which is similar to the MWT and is scored the same way, except that participants are told they should not resist falling asleep.
The pre-installed software usually comes with all working configurations for montages, scoring modules and reports for routine protocols such as standard PSG, CPAP/bi-level, split night and multiple sleep latency test.
CHICAGO -- The American Academy of Sleep Medicine's protocol for the multiple sleep latency test might miss at least one sleep-onset REM occurrence in more than one-fourth of cases, said Dr.
Overnight polysomnography and next-day multiple sleep latency tests represent the most commonly used sleep studies usually reserved for cases of insomnia with an organic cause.
In Howard's study (25), sleepiness was evaluated in resident physicians by multiple sleep latency tests, and sleep latency was found to be near or below levels associated with sleep disorders at basal and post call conditions in their study group.
Chapter one provides a comprehensive overview of the Sleep Disorders Industry covering principal sleep disorders, sleep diagnostic testing, polysomnography, Multiple Sleep Latency Tests (MSLT) and polysomnographic technologists and technicians.

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