A 7-year-old boy presents with his mother with a 1-week history of wheezing and dyspnea on any exertion (with productive cough). On physical examination, bilateral rhonchi are heard. After a few days of treatment, spirometry is done on the patient. Total lung capacity (TLC) is 111% on spirometry.
Pre-bronchodilators Post-bronchodilators
FVC% 49 63
FEV1% 41 46
FEV1/FVC 49 55
Question
What is the most likely diagnosis?
1 Asthma
2 Pneumonia
3 Pleural effusion
4 Kyphoscoliosis
5 Tuberculosis