Physiology Pulmonary function abnormalities in interstitial lung disease include all of the following except – A Reduced vital capacity B Reduced FEV1/FVC ratio C Reduced diffusion capacity D Reduced total lung capacity 💡 Explanation Pulmonary function abnormalities in interstitial lung disease include all of the following except - ✓ Correct Answer: B. Reduced FEV1/FVC ratio