@wangling @ling
Wow, be hard to know what all was done. I know I was in a test room for about 1.5 hours. They had me go into an enclosed type device and had me using a breathing tube. He would then open enclosure tell me what to do, close it, and then guide me again in what to do.

I had to breathe in various ways with nose clip and a breathing tube in my mouth. When I completed all those they had me breath in mists 3 different time from 3 different mists. I then had to do a step test with a heart monitor for oxygen testing.

I know my bronchial area was very sore after all those tests. I am sorry can't be more specific. I could go to Mayo portal and look up tests and give you a more specific answer if you like. I don't mind and if can help just let me know.