What is the role of sleep questionnaires in the evaluation of narcolepsy?

Updated: Sep 04, 2019
  • Author: Sagarika Nallu, MD; Chief Editor: Selim R Benbadis, MD  more...
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Several questionnaires are available for evaluating sleepiness. Of these, the most commonly used is the 8-question Epworth Sleepiness Scale. Patients respond to each question with a numerical score ranging from 0 (not at all likely to fall asleep) to 3 (very likely to fall asleep); thus, the lowest possible total score is 0, and the highest possible score is 24. Although there is some controversy as to precisely what score constitutes abnormal sleepiness, it is generally considered that total scores higher than 10 warrant investigation.

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