NR 226 EXAM 2 sleep, fluid and
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sleep - ANSWER ✔✔an altered state of consciousness where
perception of and reaction to environment is decreased
sleep deprivation - ANSWER ✔✔condition of not having enough
sleep, can be either chronic or acute
chronic sleep deprivation - ANSWER ✔✔restricted state can cause
fatigue, daytime sleepiness, clumsiness and weight gain, adversely
affects the brain and cognitive function
sleep pattern disturbance - ANSWER ✔✔due to decreased physical
activity, fear, anxiety, inability to assume usual sleep position, frequent
,assessments or treatments, unfamiliar environment, and discomfort
resulting from current illness/injury
circadian rhythms - ANSWER ✔✔biological clock, synchronized to
light-dark cycles, and cues in organisms environment, going to bed at
the same time every night
sleep regulation - ANSWER ✔✔regulated by a sequence of
physiological states integrated by CNS activity
stages of sleep - ANSWER ✔✔1,2,3,4 and REM
sleep cycle - ANSWER ✔✔once asleep a person passes through 4 to
5 sleep cycles
stage 1: NREM - ANSWER ✔✔lightest level of sleep, lasts a few
minutes, decreased physiological activity beginning with a gradual fall in
vital signs and metabolism, person easily aroused by sensory stimuli
such as noise, in person awakes, feels as though daydreaming has
occurred, reduction in a autonomic activities,
stage 2: NREM sleep - ANSWER ✔✔period of sound sleep,
relaxation progresses, arousal still easy, lasts 10 to 20 minutes, body
functions still slowing, at this stage, you might want to leave them
, sleeping, if it is possible try not to wake them up for vital sign checks or
other routine testing
stage 3: NREM - ANSWER ✔✔initial stages of deep sleep, sleeper
difficult to arouse and rarely moves, muscles completely relaxed, vital
signs decline but remain regular, lasts 15 to 30 minutes, hormonal
response includes secretion of growth hormone (especially in children in
stage 3 &4)
stage 4: NREM - ANSWER ✔✔deepest stage of sleep, very difficult
to arouse sleeper, if sleep loss has occurred, sleeper will spend
considerable portion of night in this stage, VS are significantly lower than
during waking hours, stage last approx. 15-30 minutes, sleepwalking
and enuresis sometimes occur
REM sleep - ANSWER ✔✔stage of vivid, full-color dreaming, first
occurs approx, 90 minutes after sleep has begun, thereafter occurs at
end of each NREM cycle, typified by autonomic response of rapidly
moving eyes, fluctuating heart and respiratory rates, and increased
fluctuating blood pressure, loss of skeletal muscle tone, responsible for
mental restoration, stage in which sleeper is most difficult to arouse,
duration of REM sleep increases with each cycle and averages 20
minutes
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
electrolytes 2026 Expert
Verifed Ace the Test
sleep - ANSWER ✔✔an altered state of consciousness where
perception of and reaction to environment is decreased
sleep deprivation - ANSWER ✔✔condition of not having enough
sleep, can be either chronic or acute
chronic sleep deprivation - ANSWER ✔✔restricted state can cause
fatigue, daytime sleepiness, clumsiness and weight gain, adversely
affects the brain and cognitive function
sleep pattern disturbance - ANSWER ✔✔due to decreased physical
activity, fear, anxiety, inability to assume usual sleep position, frequent
,assessments or treatments, unfamiliar environment, and discomfort
resulting from current illness/injury
circadian rhythms - ANSWER ✔✔biological clock, synchronized to
light-dark cycles, and cues in organisms environment, going to bed at
the same time every night
sleep regulation - ANSWER ✔✔regulated by a sequence of
physiological states integrated by CNS activity
stages of sleep - ANSWER ✔✔1,2,3,4 and REM
sleep cycle - ANSWER ✔✔once asleep a person passes through 4 to
5 sleep cycles
stage 1: NREM - ANSWER ✔✔lightest level of sleep, lasts a few
minutes, decreased physiological activity beginning with a gradual fall in
vital signs and metabolism, person easily aroused by sensory stimuli
such as noise, in person awakes, feels as though daydreaming has
occurred, reduction in a autonomic activities,
stage 2: NREM sleep - ANSWER ✔✔period of sound sleep,
relaxation progresses, arousal still easy, lasts 10 to 20 minutes, body
functions still slowing, at this stage, you might want to leave them
, sleeping, if it is possible try not to wake them up for vital sign checks or
other routine testing
stage 3: NREM - ANSWER ✔✔initial stages of deep sleep, sleeper
difficult to arouse and rarely moves, muscles completely relaxed, vital
signs decline but remain regular, lasts 15 to 30 minutes, hormonal
response includes secretion of growth hormone (especially in children in
stage 3 &4)
stage 4: NREM - ANSWER ✔✔deepest stage of sleep, very difficult
to arouse sleeper, if sleep loss has occurred, sleeper will spend
considerable portion of night in this stage, VS are significantly lower than
during waking hours, stage last approx. 15-30 minutes, sleepwalking
and enuresis sometimes occur
REM sleep - ANSWER ✔✔stage of vivid, full-color dreaming, first
occurs approx, 90 minutes after sleep has begun, thereafter occurs at
end of each NREM cycle, typified by autonomic response of rapidly
moving eyes, fluctuating heart and respiratory rates, and increased
fluctuating blood pressure, loss of skeletal muscle tone, responsible for
mental restoration, stage in which sleeper is most difficult to arouse,
duration of REM sleep increases with each cycle and averages 20
minutes
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
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