Physiology Pulmonary function abnormalities in interstitial lung diseases 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 diseases include all of the following except: ✓ Correct Answer: B. Reduced FEV1/FVC ratio