Medicine Which pattern is seen in pulmonary function tests in a patient with interstitial lung disease? A FEV1/FVC ratio increases and DLCO increases B FEV1/FVC ratio increases and DLCO decreases C FEV1/FVC ratio decreases and DLCO decreases D FEV1/FVC ratio decreases and DLCO increases 💡 Explanation Which pattern is seen in pulmonary function tests in a patient with interstitial lung disease? ✓ Correct Answer: B. FEV1/FVC ratio increases and DLCO decreases