A Patient with history of shoness of breath has Decreased FEV1/FVC Ratio, Normal DLCO. A 200 ml increase in baseline FEVI is observed 15 minutes after administration of bronchodilators. The likely diagnosis is: (A) Asthma, (B) Chronic Bronchitis, (C) Emphysema, (D) Interstitial Lung Disease
Answer is A. Ans. is 'a' i.e., Asthma