Week 2 Opstructive sleep apnea Flashcards
Non-REM sleep
75% of sleep
stage 1,2,3
stage 2 = 50% stage 3 (3,4) = 30%
REM-sleep
20-25% of sleep
most dreaming takes in REM
Not enough REM sleep….
you will get ill
REM sleep is characterized by:
eyelid fluttering
rapid eye movement
muscle paralysis
irregular breathing
REM sleep and non-REM sleep alternate in _______
90 to 110 minute cycles
A normal sleep patter has ____ cycles throughout the night
4-5
About _____ adults fails to get enough sleep
one in five (20%)
The primary effect of sleep deprivation?
Excessive daytime sleepiness (EDS)
Health effects of Sleep deprivation?
High blood pressure Obesity Heart attack Diabetes Increased risk of age-specific mortality
Continuum of sleep disordered breathing (SDB)
normal -> non-sleepy snorer -> sleepy snorer (UARS: upper airway resistance syndrome) -> Obstructive sleep apnea (OSAS)
True or False?
Sleep apnea is worse than snoring
True
Definition of Apnea?
Cessation of airflow for ≥ 10 seconds
Definition of Hypopnea?
Decreased airflow (30/50%) ≥ 10seconds
associated with oxygen desaturation (4 vs 3%) and/or arousal
What is the formula for Apnea-Hypopnea Index (AHI)?
total numbers (Apneas + hypopneas) / hours of sleep
Oxygen desaturation level ______ during sleep are medically significant
less than 90%
