USCR Balance between Rest & Activity Flashcards
What is sleep?
altered state of consciousness Person’s perception of & reaction to the environment are decreased decrease in physical activity Changes in body’s physiological processes RAS is involved with “sleep-wake” cycle
Why is sleep important?
normal development restoring energy & mental function balancing nervous system good health improve healing
What are the two physiology stages of sleep?
1) Non-Rapid Eye Movement Sleep (NREM) 2) Rapid Eye Movement Sleep (REM) (occurs every 90 minutes, stay in REM for 5-30 minutes then go back to NREM and cycle restarts
What happens in stage 1 of NREM sleep?
Decrease in physiological activity- (Decrease HR & RR) feeling drowsy Easily awakened
What happens in stage 2 of NREM sleep?
(last for 10-15 min. 44-55% of sleep/night) relaxation continues RelaxBodily processes starts to slow down
What happens in stage 3 of NREM sleep?
Initial stage of “deep sleep” HR + PR slows down Skeletal muscles relax, reflexes diminished Basal metabolic rates decrease 10% to 30% snoring
What happens in stage 4 of NREM sleep?
deepest stage of sleep HR + PR significantly lower Difficult to arouse
What are the deepest stages of NREM sleep?
stage 3&4
Best stage for restoring energy in NREM?
stage 4
What are the characteristics of REM sleep?
Dreams Fluctuating VS- HR & RR often irregular, BP surges can occur, T regulation is minimal/absent Increase brain activity Distinctive rapid eye movement Voluntary muscle tone decreased Gastric secretions increase
When does REM sleep happen?
Occurs at end of each cycle (about every 90 mins. and lasts 5-30 mins.)
What is the purpose of REM sleep?
memory storage learning & thinking stimulated
Factors affecting sleep?
health & illness emotional stress environment lifestyle stimulant (caffeine) & alcohol diet smoking motivation medication
Consequences of chronic sleep loss?
increase risk of hypertension Increased risk of diabetes increase risk of obesity Increased risk of depression increase risk of heart attack Increased risk of CVA (stroke)
What are 3 sleep disturbances?
insomnia sleep apnea parasomnia
What is insomnia?
Most common sleep problem inability to fall asleep/remain asleep
What is sleep apnea?
Frequent periodic cessation of breathing during sleep (> 5 apneic episodes longer than 10 seconds/hour)
What is parasomnia?
(sleep disorder where abnormal events occur during sleep) Somnambulism (sleep walking) Sleeptalking Bruxism (grinding of the teeth) Nocturnal enuresis (bedwetting)
Complications of insomnia?
obesity hypertension risk of heart disease risk of diabetes poor immune system
What is sleep deprivation?
Decrease in the quantity & quality of sleep Due to prolonged sleep disturbance
Responses to sleep deprivation?
- physiological (objective data) -behavioural (objective data)
Objective Data (Physiological): Inspection for lack of rest?
Reddened conjunctiva dark circles under eyes Dull, glazed eyes limited facial expression Slumped posture slurred speech