Final Flashcards
sleep recommendations for adults
at least 7 hours each night
definition of sleep
physiological state of relative unconsciousness and inaction of voluntary muscles
REM sleep
- 4-6 episodes per night
- period almost total muscle atonia
- nocturnal erections
- dreaming
NREM stage 1
- slow rolling eye movements
- theta waves
NREM stage 2
spindles and K complexes
NREM stage 3 and 4
- delta waves
- recovery, growth hormone secretion, immune function
- blood perfusion, metabolic rate, and temperature drop
- sleep walking and night terrors
sleep regulation
- circadian biological clock regulates timing of sleep and wakefulness
- diurnal
sleep efficiency and aging
- efficiency decreases with age
- efficiency defined as time asleep versus time in bed
effects of sleep deprivation
- decreased cognition
- decreased performance
- decreased perceptions
- increased carbohydrate cravings
- possible insulin resistance
insomnia criteria
- dissatisfaction with sleep quality or quantity
- causes significant distress or impairs function
- sleep difficulty at least 3 nights per week
- sleep difficulty present at least 3 months
- not caused/explained by another condition
three different types of insomnia
- inability to fall asleep
- inability to maintain sleep
- early morning awakening
psychophysiological insomnia
- somatized tension and learned sleep preventing associations
- associated decreased functioning during wakefulness
insomnia history and physical
- complete sleep history
- medical and psych assessment
- substance use
- labs
- sleep diary
- possible sleep study/actigraphy
polysomnography (sleep study)
- indicated if suspected sleep apnea, periodic limb movements, or parasomnias; insomnia treatment failure
- not indicated for routine insomnia because of insomnia variability
diphenhydramine/doxylamine sleep aid
- no prescription and inexpensive
- limited studies, residual effects from long T1/2, probable tolerance with repeated nightly use
melatonin
- questionable hypnotic effect
- not regulated by DEA
- reports of depression
- better at affecting circadian patterns
sedating antidepressants
- no defined hypnotic dose
- few studies on efficacy in treated insomnia unrelated to depression
- poor side effect profile
benzodiazepines for sleep
- good hypnotic effects
- potential for abuse
- reduces stage 3/4
- rebound insomnia
- elderly ADE: anterograde amnesia, cognitive/psychomotor degradation
zolpidem (ambien)
- rapid sleep onset
- does not affect sleep architecture
- half life 2.5 hours
- minimal side effects and drug interactions
zaleplon (sonata)
- rapid onset
- half life one hour
- no effect on sleep architecture
- can be used if 4 hours left to sleep
- unknown habit forming potential
- minimal side effects and drug interactions
eszopiclone (lunesta)
- rapid sleep onset
- longer half life
- good for chronic use and maintenance insomnia
narcolepsy
excessive sleepiness associated with
- cataplexy
- sleep paralysis
- hypnagogic hallucinations
- nocturnal sleep disruption
narcolepsy testing
- multiple sleep latency test shows low sleep onset latency and 2+ sleep onset REM
- low hypocretin in CSF
narcolepsy treatment
modafinil (provigil)
- no effect on total sleep time
- no suppression of REM