AnnieB3 I have a question about this:
“Arterial blood gas measurements are a relatively
insensitive measure of impending respiratory
decompensation in MG since the initial changes are
consistent with hyperventilation and are usually
attributed to anxiety. "

Are you saying it can look like hyperventilation/anxiety? The reason I ask is that when I saw my pulmo last he insisted I try to lay flat and breath. I was far far worse that day and worse even more as I had just finished talking to him. I had a very strong reaction. I was admittedly breathing fast and hard and realize it looked bad but all I wanted to do was sit the H*** up so I could breath easier. I felt like I was being suffocated. He started to tell me try to calm down in a kind way but my body was doin its own thing struggling to breath?

Hope it is OK to post this here. Not meaning to hijack this thread.

Annie59