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The test is based on the idea that the sleepier people are, the faster they will fall asleep. The MSLT is used to test for central disorders of hypersomnolence such as narcolepsy or idiopathic hypersomnia , or to distinguish between physical tiredness and true excessive daytime sleepiness .
Narcolepsy is a chronic neurological disorder that impairs the ability to regulate sleep–wake cycles, and specifically impacts REM (rapid eye movement) sleep. [1] The pentad symptoms of narcolepsy include excessive daytime sleepiness (EDS), sleep-related hallucinations, sleep paralysis, disturbed nocturnal sleep (DNS), and cataplexy. [1]
Sleep disorders that cause extreme daytime tiredness, such as narcolepsy [1] [2] ... This test is the standard to test for narcolepsy and idiopathic hypersomnia. [5]
The 'maintenance of wakefulness test' (MWT) is a test that measures the ability to stay awake. [45] It is used to diagnose disorders of excessive somnolence, such as hypersomnia, narcolepsy or obstructive sleep apnea. [45] [46] During that test, patients sit comfortably and are instructed to try to stay awake. [45]
A multiple sleep latency test [clarification needed] is often conducted to quantify daytime sleepiness. [ 14 ] Cataplexy can sometimes be misdiagnosed as a seizure disorder , and people with narcolepsy are often misdiagnosed with other conditions such as psychiatric disorders or emotional problems , it can take years for someone to get the ...
Polysomnography (PSG) is a multi-parameter type of sleep study [1] and a diagnostic tool in sleep medicine.The test result is called a polysomnogram, also abbreviated PSG.The name is derived from Greek and Latin roots: the Greek πολύς (polus for "many, much", indicating many channels), the Latin somnus ("sleep"), and the Greek γράφειν (graphein, "to write").