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What is A Patient with history of shoness of breath has, Decreased FEVI/FVC Ratio, Normal DECO. A 200 ml increase in baseline FEV1 is observed 15 minutes after administration of bronchodilators. The likely diagnosis is: and explain in detail?
Answer is A (Asthma) An obstructive pattern of PFTs with reduction in the ratio of FEV1; FVC along with demonstration of reversibility of airway obstruction (> 200 ml increase in baseline FEV1) after bronchodilator administration is typical of Asthma.