Spirometry can be a bit horrible...I usually sound like I smoke 50 a day by the time I'm finished.
The type won't really be easy to say at this juncture but may not matter. If you know what your triggers are, and are ok when you avoid them, then that's a good start.
To be honest I'd have said that yes you probably should have a preventer, but obviously I wasn't there & haven't seen your readings so I wouldn't want to jump to any conclusions.
I know that you've said before that you have trouble with the surgery, but did the nurse say what happens next?
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