maintenance of wakefulness test


main·te·nance of wake·ful·ness test

(MWT) (mān'tě-năns wāk'ful-nĕs test) Assessment that lasts up to 8 hours in which a patient is studied during naps and wakefulness in a sleep-inducing environment.

maintenance of wakefulness test

An assessment of excessive daytime sleepiness in which the subject is asked to remain awake while resting comfortably in a quiet, dark room.