Nurs 1014

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1

rest

connotes a condition in which the body is in a decreased state of activity, with the consequent feeling of being refreshed.

2

Sleep

is a state of rest accompanied by altered conscious- ness and relative inactivity.

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Circadian rhythms

complete a full cycle every 24 hours. “Circa” in Latin means “approximately” and “diem” is the Latin word for “day”; circadian represents approximately 1 day

4

delta sleep

Stages III and IV, each representing about 10% of total sleep time, are deep-sleep states, termed ______ or slow-wave sleep.

5

sleep cycle,

a person passes consecutively through the four stages of NREM sleep.

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melatonin

a natural chemical produced at night that decreases wakefulness and promotes sleep

7

Dyssomnias

are sleep disorders characterized by insomnia or excessive sleepiness.

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Parasomnias

are patterns of waking behavior that appear during sleep.

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Insomnia

is characterized by difficulty falling asleep, intermittent sleep, or early awakening from sleep.

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Hypersomnia

is a condition characterized by excessive sleep, particularly during the day.

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Narcolepsy

is a condition characterized by an uncontrol- lable desire to sleep.

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Sleep apnea,

generally referred to as sleep-disordered breathing (SDB), is a condition in which a person expe- riences the absence of breathing (apnea) or diminished breathing efforts (hypopnea) during sleep between snoring intervals.

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restless leg syndrome (RLS)

cannot lie still and report unpleasant creeping, crawling, or tingling sensations in the legs.

14

Sleep deprivation

refers to a decrease in the amount, consis- tency, or quality of sleep.

15

Somnambulism

or sleepwalking may range from sitting up in bed to walking around the room or the house to walking outside the house.

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Enuresis

is urinating during sleep or bedwetting. It occurs most commonly in males who are over three years of age.

17

Sleep hygiene

refers to nonpharmacologic recommendations that help a per- son get a better night’s sleep.