OSA Lecture 5 Flashcards
what defines OSA?
apnea occurring five or more times per hour of sleep
may be accompanied by oxygen desaturation
snoring is a commons symptom
confirmed by polysomnography
what is hypopnea?
reduciton in airflow during sleep associated with oxygen desaturation of
What is apnea?
COMPLETE cessation of airflow for greater than 10 SECONDS
snoring?
upper airway resistance
what is REFA..respriatory effort related arousal
sequence of breaths with increasing respiratory effort leading to an arrousal from sleep
what is AHI?
apnea hypopnea index= # of apneas and hypopnea divided by total sleep time
what is the RDI?
a measure of the severity
30 events/6 hours of sleep = RDI of 5
Describe the OSA severity index/
mild is 5 30
are men or women more likely to have OSAS?
men
age of onset for OSAS?
30-60
T/F
there are NO physical findings pathognomonic for OSA?
true
what is a neck circumference questionable for OSA?
17 in men and 16 in women
what sleepiness scale do we use?
Eppworth sleepiness scale ESS and this is followed by the multiple sleep latency test
should you complete the ESS before or after sleep lab consult
BEFORE.
when should you consider doing a sleep study?
if you score 10 or greater. if 18 or greater, could be narcolepsy
