I'm a 31 years old male, heavy smoker for over 15 years. I've had severe coughing and some short breath for 3 or 4 years. I don't exercise at all, as I have a back injury restricting my mobility for more than 10 years. Recently, coughing and breath shortness intensified significantly, I have done a spirometry at the request of my pulmonologist. I searched the internet and figured out what all other figures indicate, except for the FIVC, I have predicted value of 5.09L, best value of 1.61L, with a % of 32%. Taking into consideration that all other values are fairly good as follows: FEV1 94%, FVC 85%, FEV1/FVC 88%.
I will see my pulmonologist within a couple of weeks, and I can't wait to understand why such low FIVC? is this COPD?