All of these pulmonary changes are seen in restrictive lung disease except:
Vital capacity is sum of ERV + TV + IRV. All these lung volumes are Reduced in Restrictive lung disease due to pulmonary fibrosis. Do not mix with Timed vital capacity which is a ratio of FEV1/ FVC and is increased in restrictive lung disease.
|FEV1/FVC
|TLC
|RV
| VC
Flow Volume curve, Spirometry and DLCO