All of these pulmonary changes are seen in restrictive lung disease except:: (A) |FEV1/FVC, (B) |TLC, (C) |RV, (D) | VC
Answer is D. 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.