06-28-2013, 06:06 PM
(This post was last modified: 06-28-2013, 06:08 PM by spdklls99.)
quote [Rich, what's the difference between the 2 settings? What does RDI show that normal doesn't?
[respiratory-effort related arousals (RERAs). RERAs are arousals from sleep that do not technically meet the definitions of apneas or hypopneas, but do disrupt sleep. They are abrupt transitions from a deeper stage of sleep to a shallower.]
RDI = (RERAs + Hypopneas + apneas) X 60 / TST (in minutes). That is, RDI means the average number of episodes of apnea, hypopnea, and respiratory event-related arousal per hour of sleep. (TST is "total sleep time".)
It is possible to have a low AHI but still feel fatigued due to respiratory-effort related arousals (RERAs)....so the RDI gives a much broader indication of the actual amount of sleep you are getting...your RDI # like the AHI # should be as low as possible..preferably <5
I don't believe anything I hear and only half of what I see