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Nursing 120 Exam 3 Review QUESTIONS AND ANSWERS WITH VERIFIED SOLUTIONS
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Nursing 120 Exam 3 Review QUESTIONS AND ANSWERS WITH VERIFIED SOLUTIONS
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Nursing 120 Exam 3 Review QUESTIONS ANDANSWERS WITH VERIFIED SOLUTIONS
What is sleep? - ANSWER A state of rest accompanied by alter consciousness
and relative inactivity.
What is rest? - ANSWER A condition in which the body is in a decreased state
of activity, results in feeling refreshed.
How do we wake up? - ANSWER The RAS is activated with stimuli from the
cerebral cortex and from periphery sensory organs.
Stimuli - noise, alarm clock, etc.
Brainstem - ANSWER -RAS and bulbar synchronizing region - both located in
the brainstem and work together to
control the cyclic nature of sleep.
-Hypothalamus - ANSWER Control center for sleeping and waking. Injury
causes altered sleep patterns.
NREM - stages 1-4 - ANSWER Stage 1 & 2: 55% of sleep, light sleep.
-Stage 3 & 4: 20% of sleep, deepest states.
-Vitals are decreased, essential for physiological restoration and growth.
REM - ANSWER -Almost paralyzed, vitals are increased
,Stage 1 sleep - ANSWER -Very light, only a few minutes long. VS & metabolism
begin to decrease, awakens easily, feels
relaxed and drowsy.
Stage 2 sleep - ANSWER -Deeper sleep, 10-20 minutes long. VS & metabolism
continues to decrease. Requires slightly
more stimulation to awaken, increased relaxation
Stage 3 sleep - ANSWER Initial stage of deep sleep, 15-30 minutes long. VS
continue to decrease but remains regular.
Difficult to awaken, relaxation with little movement.
Stage 4 sleep - ANSWER -Delta sleep, 15-30 minutes long. VS low. Very difficult
to awaken, physiologic rest and
restoration.
-Enuresis, sleep walking, sleep talking are possible.
-Repair and renewal of tissue.
-REM sleep - ANSWER -Vivid dreaming, about 90 minutes after falling asleep.
Longer with each sleep cycle.
-Average length is 20 minutes. Varying VS. Very difficult to awaken.
-Cognitive restoration
-A client in REM sleep would be considered to be restoring what human
functions?
-Learning, memory, belonging, critical thinking.
, Factors affecting sleep - ANSWER -Developmental considerations, motivation
(want to stay awake, party), culture - bedtime rituals,
lifestyle and habits (working night shift, physical activity and exercise).
-Exercise will increase fatigue and promote REM & NREM. Exercise within 2-3
hours of
sleep can hinder effective sleep.
-Dietary habits
-Carbs before bed promote calmness. Avoid caffeine and smoking. Alcohol used
within
6 hours of sleep can hinder sleep.
-Environmental factors
-Same vs new environment, dark and cool environment.
-Psychological stress
-REM decreases
-Illness
-Ulcers, epilepsy, end-stage renal disease, CAD, liver failure, thyroid.
Sleep requirements - ANSWER -Infants: 14-20 hours
-Growing children: 10-14 hours
-Adolescents: varies widely
-Adults: 7-9 hours
-Older adults: 5-7 hours
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