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DeadlySleep wrote:

I wore my odometer and the DME's on different hands that night

May I kindly suggest your problem is your MPG, not your ox level?

Ha! Darn auto correct!

Good you have a sense of humor.

Why do you need supplemental oxygen?

My next toy:
http://www.medgadget.com/2014/02/masimo ... droid.html

I asked my DME to use their pulse-ox to verify the data from my CMS-50D that indicated I was hitting 70% 3-4 times a night for 10 mins or so at a time. The DME called the Doc for an order. Our only doctors in my small town work for the local hospital. My Doc hijacked the request and requested I use a pulse-ox from the hospital. Free was not in order. The one night usage was billed at $244, but with a little ins. discount I only paid $23.44 for my 10% co-pay. Always ask what a "loaner" costs!!!

For reference, I wore both pulse-ox that night and the CMS-50D tracked identically with the hospital unit.