Valerie has episodes in which she experiences a sudden and irresistible urge to sleep during normal waking periods. Valerie most likely suffers from
A) narcolepsy.
B) hypersomnia.
C) cretinism.
D) a lack of REM rebound.

Question

Quizplus · Accepted Answer

The sudden and irresistible urge to sleep during normal waking periods is a symptom of narcolepsy, which is a sleep disorder characterized by excessive daytime sleepiness and sudden attacks of sleep. Hypersomnia is also a sleep disorder characterized by excessive daytime sleepiness, but it does not typically involve sudden attacks of sleep. Cretinism is a condition caused by an underactive thyroid gland and involves symptoms such as developmental delay and intellectual disability, but not excessive sleepiness. A lack of REM rebound refers to the absence of an increase in REM sleep after it has been deprived, and is not related to the symptoms described.

Valerie Has Episodes in Which She Experiences a Sudden and Irresistible