The nurse knows that cataplexy includes:
a. an uncontrolled desire to sleep.
b. falling asleep for several minutes.
c. loss of voluntary muscle tone.
d. a sleep cycle that begins with NREM.
ANS: C
Cataplexy is characterized by the sudden loss of voluntary muscle tone; vivid hallucinations during sleep onset or on awakening; and brief episodes of total paralysis at the beginning or end of sleep. An uncontrolled desire to sleep and falling asleep for several minutes define narcolepsy. Narcolepsy begins with REM sleep.
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