Male 49 years old . Just been diagnosed with pure emphysema. I am an ex-smoker, so I knew the risks. However I am having a hard time understanding the PFT report. FEV1 107%pred, FEV1/IVC 98%pred, FEV1/FVC 103%pred, PEF 110%, TLC 114% BUT...
Residual value: RV 210%pred and RV/TLC 171%.
So even if FEV1/FVC is normal, because of high RV, I guess I have stage 4 emphysema? However I can still run 2 km in a reasonable time and walking long distances. Strange. Please clarify. Thanks.