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The American Academy of Sleep Medicine practice parameters recommend that children as young as 5 years of age to adults suspected of narcolepsy or idiopathic hypersomnia undergo a Multiple Sleep Latency Test (MSLT), a diagnostic tool used in conjunction with a polysomnography (PSG) study in the evaluation of excessive daytime sleepiness. As with a PSG, individuals are continuously recorded via video, audio, and many of the polysomnogram leads used the night before including electroencephalogram, electrooculography, electrocardiogram, and electromyography. The MSLT is not indicated for use in the diagnosis of many other sleep disorders including obstructive sleep apnea, insomnia, and sleep-wake disorders; however, MSLT can be used to assess the effectiveness of treatment for disorders such as obstructive sleep apnea where excessive daytime sleepiness is ...

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