rest and sleep Flashcards
describe rest
a state of mental, physical, and spiritual activity that leaves a person feeling refreshed
describe sleep
-rest that is accompanied by altered consciousness and relative inactivity
-emotionally and physically restorative
-impaired sleep = impaired well being
describe reticular activating system (RAS) and the bulbar synchronizing region
-in the brain stem
-responsible for alertness
-receive stimuli from environment
-helps wake up
describe hypothalamus
-sensitive to chanes in environment
-circadian rhythm (internal 24hr biological clock - more than sleep wake cycle, includes VS, hormones and cognitive function)
do neurotransmitters and hormones fluctuate
yep
what are neurotransmitters used for
excitation or inhibition of CNS
describe melatonin
released when eyes sense change in light -> begins generally at 9pm
describe the function of sleep
-poorly understood
-thought to be important for physiologic, emotional, and cognitive functioning (body tissue restoration, sorting and sicarding of neurophysiologic data, character reinforcement and adaptation)
describe non rapid eye movement sleep
-~75% of sleep time
-PNS is in control
-divided into four stages (I and II are light sleep, stage III and IV are deep sleep/delta sleep/slow wave sleep)
describe raoid eye movement sleep
-remaining 25% of sleep
-fluctuation or increase in vital signs
-increase in cerebral blood flood and oxygen consumption
-relaxation of of skeltal muscles
-REM rebound (REM tried to catch up with lost REM sleep)
-most difficult to wake somebody up
-stage increase in length of time closer to the morning
stages if sleeo are understood and evaluated through…
polysomnogram
-EEG, EOG, EMG
-challenging for pt
describe stage I of sleep
-transitional state between wakefulness and sleep
-hypnic jerk
-lasts only minutes
-muscle relaxation starts
-HR and RR slow a little
describe hypnic jerk
-involuntary contractions of muscle
-increased liklihood if a person has increased excercise, stress, or caffeine
describe stage II sleep
-asleep, but a light stage, easily awakened
-make up about half of sleep time
-more frequently in early night
describe stage III (slow wave/delta) sleep
-seeper sleep, more difficult to waken
-increased relaxation -> snoring, sleep walking, bed wetting
describe stage IV (slow wave/delta) sleep
-deepest stage, brain activity slows
-realistic dreams
how long is the average sleep cycle
90 mins, go through about 4-5 a night
sleep thorughout the lifespan
infancy
-newborns sleep approximately 16hrs per 24hr period
-sleeps through the night between 2-4 months of age
-REM constitutes much of sleep cycle
-ABCs of safe sleep (alone, back, crib)
sleep thorughout the lifespan
toddlers and preschoolers
-11-14 hrs in 24hr period
-transition from crib to bed
-establish bedtime routine
-probs still taking a nap
sleep thorughout the lifespan
school aged children
-9-12hrs in 24hr period
-increased need for sleep r/t growth spurts
sleep thorughout the lifespan
adolescents
8-10hrs/24hr recommended but rarely achieved
sleep thorughout the lifespan
adults
7-9hrs/24hrs
-decrease in nonREM stage IV sleep starts in middle age and is absent by older adulthood
-increased time to fall asleep and stay asleep as we age
name some impacts of insufficient sleep
-obesity
-anxiety
-depression
-GI compaints
-type 2 diabetes
-HTN
-stroke
-substance abuse
-MVA
-impaired decision making
-impaired task performance
name some factors that affect sleep
-motivation
-culture
-lifestyle/habits
-environment
-stress/anxiety
-illness
-medications
factors that affect sleep
motivation
desire to be awake may override physiological need
factors that affect sleep
culture
relationships, routines, security
factors that affect sleep
lifestyle/habits
-exercise, substance intake
-diet (complex carbs and protein help sleep)
-shift work (decreased clinical judgement and decision making
factors that affect sleep
environment
-distractions
-away from home environment
-temp and light (60 to 67 degrees is ideal for adults)
factors that affect sleep
stress/anxiety
everything gets worse at night