Author Question: The nurse knows that cataplexy includes: a. an uncontrolled desire to sleep. b. falling asleep ... (Read 17 times)

student77 · **on:** Jul 23, 2018

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.

Question 2

The nurse knows the reticular activating system (RAS):

a. records brain waves and other variables.
b. relays motor impulse to the hypothalamus.
c. influences patterns of biological functioning.
d. is affected by the light-dark cycle.

laurnthompson · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

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.

Answer to Question 2

ANS: B
The RAS receives sensory impulses from the spinal cord and relays motor impulses to the thalamus and all parts of the cerebral cortex. Polysomnography is the recording of brain waves and other physiologic variables, such as muscle activity and eye movements, during sleep. The circadian rhythms influence patterns of biological and behavioral functions, and the sleep-wake circadian rhythm is affected by the light-dark cycle.