Chapter 33: Sleep

Chapter 33: Sleep

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. The nurse knows that with the onset of darkness and in preparation for sleep:

a.	cortisol levels peak.
b.	cortisol levels increase.
c.	core body temperature increases.
d.	melatonin levels increase.

 

 

ANS:  D

Melatonin levels increase and core temperature and cortisol levels decrease with the onset of darkness. Cortisol levels peak at 6 A.M.

 

DIF:    Understanding                                 REF:   p. 750             OBJ:   33.1

TOP:   Assessment    MSC:  NCLEX Client Needs Category: Physiological Integrity

NOT:  Concepts: Caring Interventions

 

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.

 

 

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.

 

DIF:    Understanding                                 REF:   p. 751             OBJ:   33.1

TOP:   Assessment    MSC:  NCLEX Client Needs Category: Physiological Integrity

NOT:  Concepts: Caring Interventions

 

3. The nurse is educating a patient about taking measures to help avoid disruption to the circadian rhythm. The following statement by the patient indicates a need for further education:

a.	“I know the circadian rhythm influences biological functions.”
b.	“I know the circadian rhythm exists only in humans.”
c.	“I know the sleep-wake circadian rhythm is impacted by the light-dark cycle.”
d.	“The most familiar circadian rhythm is the day-night 24-hour cycle.”

 

 

ANS:  B

Biological rhythms exist in plants, animals, and humans. In humans, these biorhythms, along with internal and external factors, affect sleep. The most familiar rhythm is the day-night, 24-hour circadian rhythm cycle. Circadian rhythms influence patterns of biological and behavioral functions. Some creatures are diurnal, or primarily active during the day, whereas others are nocturnal, with most of their activity during the night.

 

DIF:    Applying        REF:   p. 751            OBJ:   33.1               TOP:   Implementation

MSC:  NCLEX Client Needs Category: Physiological Integrity

NOT:  Concepts: Caring Interventions

 

4. The nurse knows that polysomnograpy is:

a.	the recording of brain waves and other variables.
b.	the relay of motor impulse to the hypothalamus.
c.	the patterns of biological functioning.
d.	the recording of seizure activity in the brain.

 

 

ANS:  A

Polysomnography is the recording of brain waves and other physiologic variables, such as muscle activity and eye movements, during sleep. The reticular activating system (RAS) receives sensory impulses from the spinal cord and relays motor impulses to the thalamus. The circadian rhythms influence patterns of biological and behavioral functions. An electroencephalogram is used to record seizure activity in the brain.

 

DIF:    Understanding                                 REF:   pp. 751-752    OBJ:   33.1

TOP:   Implementation

MSC:  NCLEX Client Needs Category: Physiological Integrity

NOT:  Concepts: Caring Interventions