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Sleep DisordersPsychiatric Nursing: Contemporary Practice

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Question Answer
Which gender is most likely to suffer from a sleep disorder?
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Women
What part of the brain regulates wakefulness?
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The reticular activating system
Sleep _______ is the time period measured from bedtime to the beginning of sleep.
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Sleep latency
Sleep_________ is the pattern of NREM and REM which occurs in a 90-110 minute cycle.
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Sleep architecture
What regulates the stages and timing of sleep?
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Circadian rhythms
Sleep ________ is the ratio of total sleep time to nocturnal time in bed.
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Sleep efficiency
Where is the biologic clock that regulates circadian rhythm located in the brain?
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The suprachiasmatic nucleus in the hypothalamus
_______ is the term for people who perform best in the early morning and make up most of the population.
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Larks
________ is the term for people who are more alert and perform better in the late evening hours, have a natural tendency to stay up late and are at higher risk for developing sleep apnea or insomnia.
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Owls
How often does the NREM-REM cycle repeat itself a night?
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5-6 times
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How does REM sleep change throughout the sleep cycle?
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REM sleep lengthens with each successive cycle, dominating at the end of the sleep period.
Which phase of sleep is most dominant in the early evening?
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NREM
Which phase of sleep is most dominant in the latter stages of sleep?
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REM sleep lengthens with each successive cycle, dominating at the end of the sleep period.
NREM occurs about ________ minutes after falling asleep.
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90
What are the characteristics of stages 1 & 2 of sleep?
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It is light, the person is easily aroused, may not recognize they'd been asleep.
Stage _____ of sleep accounts for 5% of a night's sleep and is the transition between sleep and wakefulness.
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Stage 1
Which stage of sleep comprises the majority of a night's sleep?
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Stage 2
What happens to the brain rhythms during Stage 1 & 2 of sleep?
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Alpha rhythms are gradually replaced by theta rhythms.
When do sleep spindles or k complexes occur during sleep (what stage)?
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Stage 2
The deepest state of sleep is called ________ sleep and is thought to have a restorative function.
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Slow wave sleep
  
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