A pt presents with progressive dyspnea. He complains of cough, wheeze and a table spoonful of
mucopurulent sputum for the last 18m. Spirometry has been done. FEV1/FVC=2.3/3.6. After taking salbutamol, the ratio=2.4/3.7. What is the most likely dx?
a. Chronic bronchitis
b. Asthma
c. Bronchiectasis
d. Lung fibrosis
e. Sarcoidosis
answer: C
It is not asthma because asthma will have an increase in FEV1 by at least 12%, here it increased about 5% indicating irreversible damage.
Differentiating chronic
bronchitis and bronchiectasis is really not easy with this much
information, since both can have cough, sputum, wheeze, dyspnea,
hemoptysis, obstructive pattern. Usually in MCQs which point to
bronchiectasis it will mention clubbing which generally isn't associated
with COPD, also FOUL smelling sputum or history of severe pneumonia or
disease predisposing to it or lack of smoking history can be clues for
bronchiectasis.
However looking it at more closely, the lack of smoking history pushes me towards bronchiectasis.
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