NR 226 EXAM 2 NEWEST ACTUAL EXAM
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWER
1. sleep
Answer an altered state of consciousness where perception of and reaction to
environment is decreased
2. sleep deprivation
Answer condition of not having enough sleep, can be either chronic or acute
3. chronic sleep deprivation
Answer restricted state can cause fatigue, daytime sleepi- ness, clumsiness and
weight gain, adversely affects the brain and cognitive function
4. sleep pattern disturbance
Answer due to decreased physical activity, fear, anxiety, inability to assume usual
sleep position, frequent assessments or treatments, unfa- miliar environment, and
discomfort resulting from current illness/injury
5. circadian rhythms
Answer biological clock, synchronized to light-dark cycles, and cues in organisms
environment, going to bed at the same time every night
1/
7
,6. sleep regulation
Answer regulated by a sequence of physiological states integrated by CNS
activity
7. stages of sleep
Answer 1,2,3,4 and REM
8. sleep cycle
Answer once asleep a person passes through 4 to 5 sleep cycles
9. stage 1 NREM
Answer lightest level of sleep, lasts a few minutes, decreased physio- logical
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,
10. 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
11. 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
2/
7
, minutes, hormonal response includes secretion of growth hormone (especially in
children in stage 3 &4)
12. 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
13. 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
14. functions of sleep
Answer restores normal levels of activity, restores normal balance
among parts of the nervous system, necessary for protein synthesis (energy for
body and muscle growth), psychological well-being, dreams
15. purpose of sleep
Answer physiological and psychological restoration and maintenance of biological
3/
7
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWER
1. sleep
Answer an altered state of consciousness where perception of and reaction to
environment is decreased
2. sleep deprivation
Answer condition of not having enough sleep, can be either chronic or acute
3. chronic sleep deprivation
Answer restricted state can cause fatigue, daytime sleepi- ness, clumsiness and
weight gain, adversely affects the brain and cognitive function
4. sleep pattern disturbance
Answer due to decreased physical activity, fear, anxiety, inability to assume usual
sleep position, frequent assessments or treatments, unfa- miliar environment, and
discomfort resulting from current illness/injury
5. circadian rhythms
Answer biological clock, synchronized to light-dark cycles, and cues in organisms
environment, going to bed at the same time every night
1/
7
,6. sleep regulation
Answer regulated by a sequence of physiological states integrated by CNS
activity
7. stages of sleep
Answer 1,2,3,4 and REM
8. sleep cycle
Answer once asleep a person passes through 4 to 5 sleep cycles
9. stage 1 NREM
Answer lightest level of sleep, lasts a few minutes, decreased physio- logical
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,
10. 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
11. 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
2/
7
, minutes, hormonal response includes secretion of growth hormone (especially in
children in stage 3 &4)
12. 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
13. 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
14. functions of sleep
Answer restores normal levels of activity, restores normal balance
among parts of the nervous system, necessary for protein synthesis (energy for
body and muscle growth), psychological well-being, dreams
15. purpose of sleep
Answer physiological and psychological restoration and maintenance of biological
3/
7
