• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/42

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

42 Cards in this Set

  • Front
  • Back

stage of sleep that is only a few minutes long, is very light, person can be awakened easily-but feels relaxed/drowsy, vital signs and metabolism are just beginning to diminish

stage 1 NREM
deeper sleep lasting 10-20 minutes, increased relaxation-but person can still be awakened easily
stage 2 NREM
deep sleep lasting 15-30min, difficult to awaken, relaxation is such that person seldom moves

stage 3 NREM

(stage 3 and 4 NREM are often called "deep" or "delta" sleep. The only difference between the two is the % of delta waves that occur in a 30 second period)

deepest sleep 15-30min in length, vital signs very low compared to when awake, very difficult to awaken.

The stage in which the body achieves PHYSICAL rest and restoration

The stage at which enuresis and talking/walking in one's sleep occur
stage 4 NREM
stage of sleep in which dreams occur, 5-30 min long and start 50-90 min after falling asleep, varying vital signs, very difficult to awaken.
Brain is highly active, brain metabolism may increase as much as 20%

The stage at which MENTAL rest and restoration occur
REM
Describe the sleep cycle

the sleep cycle consists of NREM and REM sleep. Typically, after a person experiences stage 1 of NREM, he will cycle through the other stages 4-6 times throughout the night.

difficulty falling asleep or the inability to receive restorative sleep
insomnia

(more common in women than men)
Disorder of the sleep and wake mechanisms. Person may lose ability to stay awake.
narcolepsy

often happens at inappropriate times, putting person at risk
absence of breathing for > than 10 seconds 5 times per hour during sleep
sleep apnea
instructions for the narcoleptic client

participate in regular exercise

eat small meals that are high in protein

avoid activities that increase sleepiness (sitting too long, warm environments, alcohol)

avoid activities that would cause injury should they fall asleep (driving, heights)

take naps when narcoleptic events are likely to occur

take stimulants as prescribed by PCP

nursing interventions for the client experiencing difficulty with sleep

assist client to establish and follow a bedtime routine

attempt to minimize number of times client is awakened during the night while hospitalized

offer to assist client with hygiene needs or back rub prior to sleep to increase comfort

Instruct the client to:
exercise regularly at least 2 hours before bedtime
keep sleep environment comfortable
limit caffeine, alcohol, nicotine in late afternoon/evening
limit fluids 2-4 hours before bedtime
use muscle relaxation if anxious or stressed

use CPAP for clients with sleep apnea (if ordered)

provide pharmacological agent as ordered by PCP-should be last resort

assessment tool used to determine presence of sleep problem and gauge its extent
Epworth Daytime Sleepiness Scale

<10 probably normal
10-12 mild sleepiness
13-17 moderate sleepiness
18-24 severe sleepiness

when the last two items on the list are rated as "chance of happening", client requires counseling and referral.
(last 2 are falling asleep at stoplight and falling asleep while driving alone on monotonous road for an hour)
Typical sleep requirements by age
birth-3 months....16hr a day

infants (3 months-1 year)...8-10 hrs with 2-3 daytime naps

preschoolers....12 hrs with less napping during the day

school-age....11-12 for younger children, 9-10 for older children

adolescents....7.5hrs per night

young adults....6-8.5 hrs per night

middle adults....6-8.5 hrs per night

older adults....6-8.5 hrs with daytime naps possibly
accounting for some of the hours
Three types of sleep apnea
Obstructive apnea, central apnea, and mixed apnea
What is obstructive apnea?
occurs when structures of the pharynx or oral cavity block the flow of air. Person continues to try to breathe, chest/abdominal muscles still continue to move. Diaphragm movements become stronger and stronger until obstruction is cleared. (That's why a person will often "snort" when coming out of an apneic episode.)
What is central apnea?
thought to involve a defect in the respiratory center of the brain. All actions involving breathing, such as airflow and chest movement, cease during a central apneic episode.

(clients who have brain stem injuries and muscular dystrophy often have central apnea)
what is mixed apnea?
a combination of obstructive and central apnea
condition in which individual gets sufficient sleep at night but still cannot stay awake during the day
hypersomnia

usually caused by a medical condition. (CNS damage, some kidney, liver, metabolic disorders-such as diabetic acidosis and hypothyroidism)

hypersomnia rarely has a psychological origin.
four types of drugs that can cause excessive daytime sleepiness
antidepressants
antihistamines
beta-blockers
narcotics
what effect can beta-blockers have on sleep?
they have been known to cause nightmares and insomnia
What effects can narcotics have on sleep?
some narcotics (Demerol, morphine) are known to suppress REM sleep and cause frequent awakenings and drowsiness
What effect can antidepressants have on sleep?
They suppress REM sleep, HOWEVER... this is considered a therapeutic effect. Selectively depriving a depressed client of REM sleep will result in an immediate but transient improvement in mood.
what instruction should be given to a client who is planning on discontinuing long-term antidepressant or hypnotic medication?
REM rebound may occur.

(a period of more intense dreams)
What effect does nicotine have on sleep?
As nicotine is a stimulant, smokers often have more difficulty falling asleep than non-smokers, and are often more easily aroused from sleep.

Refraining from smoking after the evening meal usually helps the person to sleep better.

former smokers report iimproved sleep patterns following tobacco cessation.
What effect does caffeine have on sleep?
caffeine disrupts sleep by stimulating the central nervous system
What effect does alcohol have on sleep?
Alcohol disrupts REM sleep, but it hastens the onset of sleep.

person will "make up" lost REM sleep once alcohol has worn off, but may experience nightmares
Describe effects illness can have on sleep
Respiratory conditions such as shortness of breath, nasal congestion, sinus drainage make it difficult to breathe and may disrupt sleep.

Hyperthyroidism lengthens presleep time, making it difficult for the individual to fall asleep.

Hypothyroidism decreases stage IV NREM sleep

Pain from gastric and duodenal ulcers may disrupt sleep due to increased gastric secretions that occur at night.

Women with low levels of estrogen often complain of fatigue

elevated body temperatures cause some reduction in delta and REM sleep
It is difficult to note sleep abnormalities during a physical assessment, but there are clinical signs of sleep apnea... what are they?
enlarged and reddened uvula and soft palate

enlarged tonsils and adenoids (in children)

obesity (in adults)

neck size greater than 17.5 inches in males
what is somnambulism and in which sleep stage does it occur?
sleepwalking

it occurs during stages III and IV of NREM, usually 1-2 hours after falling asleep
define parasomnia and give examples
behavior that may interfere with sleep and even occur during sleep

arousal disorders (sleepwalking, sleep terrors)

sleep-wake transition disorders (sleep talking)

nightmares and bruxism are also types of parasomnias
What is bruxism?
clenching and grinding of teeth usually occurring during stage II NREM sleep.

Eventually erodes teeth, can cause fractures of teeth, may loosen them due to occlusal trauma, and lead to deterioration of the TMJ
compare/contrast sleep history and sleep diary
a sleep history is a brief assessment regarding a client's sleep patterns such as hours per night, presence of snoring, bedtime rituals, medications taken to help with sleep. It should be done for all clients entering a healthcare facility and can be done in conjunction with the physical assessment. A more detailed assessment should be done if excessive daytime sleepiness is an issue, if sleep problems have been present for more than 6 months. This in-depth assessment, along with any diagnostic studies, must be performed by a nurse practitioner with specialized training

A sleep diary is a log of sleep patterns over the course of 1-2 weeks kept by the client.
define polysomnography
Polysomnography is a diagnostic test in which a number of physiologic variables are recorded during sleep

Electroencephalogram (EEG, electromyogram (EMG), and electro-oculogram (EOG) are in included in a polysomnography. Respiratory effort and airflow, ECG, leg movements, oxygen saturation are also monitored.
Describe functions of sleep
to cope with daily stresses

to prevent fatigue

to conserve energy

to restore the mind and body

to enjoy life more fully

enhances daytime functioning

vital for optimum psychological and physiological function as well as tissue repair
Describe characteristics of sleep for adolescents
require 9-10 hrs per night

circadian rhythms tend to shift at the onset of adolescence, later sleep and wake patterns are biologically determined
Describe characteristics of sleep for adults
need 7-9 hrs per night (although this # varies, some do well with as little as 6, while others require 10)

Lifestyle changes for young adults such as new jobs, pregnancy, babies affect sleep

Lifestyle changes for middle-aged adults such as care for aging parents or chronically ill partners may affect sleep
Describe characteristics of sleep for elders
need as much sleep as adults, but the ability to sleep becomes more difficult

hallmark change with age is a tendency toward earlier bedtimes and wake times-they awaken 1.3 hours earlier and go to bed 1 hour earlier

elderly clients with dementia may experience sundown sydrome
Describe the sleep patterns of newborns
sleep 16-18 hours a day on a irregular schedule with periods of 1-3 hours of wakefulness

newborns enter REM sleep immediately

newborns spend about 50% their sleep time in each stage of sleep. The sleep cycle is about 50min.

best to put newborns to sleep when they are sleepy, but not asleep
Describe the characteristics of sleep for infants
14-15 hrs in 24 hrs.

At first, they awaken every 3-4hrs to eat

by 6mos, most will sleep through the night

usually take 2 naps per day

like infants, should be put to bed when they are sleepy, not asleep. Helps them to become "self-soothers" rather than "signalers"
Describe the characteristics of sleep for toddlers (1-3 years)
12-14 hrs per night

most still need an afternoon nap

may exhibit a great deal of resistance to going to bed and may awaken during the night

nighttime fears and nightmares are common
Describe the characteristics of sleep for preschoolers (3-5 years)
11-13 hrs per night

sleep needs fluctuate with activity and growth spurts

night terrors or nightmares may be a problem
Describe the characteristics of sleep for the school age child (5-12 years)
needs 10-11 hours per night, but most get less due to increasing demands of homework, sports, etc.)

May spend more time at the computer or watching tv, may drink caffeinated beverages-all of which may lead to difficulty with sleep