Most basic PFTs are really simple hershy. They call it screening spriometry. As a respiratory therapist, I not only monitored mine, but gave many to patients with COPD. It is just a simple breathe deep and exhale as far as you possibly can, then keep going. Don't and I repeat do not, let them put you in a box and put a ballon in your esophogus. You do not need that. It is only for very advanced or difficult to dagnose cases. I doubt that is in the plans. I'm claustrophic in that small a space, much less hating things that stimualte my gag reflex. I would fight tooth and nails.
Don't be unhappy; it's a good thing. Leaks can effect lung function and that can lead to congestive heart failure and obstructed or restricted breathing. Neither one is a condition you want to even touch upon. Love you and I hope the results are positive. Incidenatlly, I have RAD/asthma. RAD means reactive airway diesease and usually means minor asthma. I need to get spirometry done in the next couple weeks. Oh, I just love getting older and living with a body that won't stay 35 years old!
