My new clinic is proactive with testing for stomach acid in the sputum culture. Has anyone else had talks about this in regards to their sputum with their CF doc? They want me to get a acid test, where they put you out and stick this thing down your esophagus that will measure how much acid one is aspirating into the lungs. This acid causes the lung tissue to scar. If it shows alot then surgery could be an option to tighten the valve of the esophagus so the acid does not get into the lungs. I have never had any kind of surgery or have been put out and I am nervous about this.... Anybody have any experience with all this.<br>