Reid's Index is? -: (A) Increased in Chronic Bronchitis, (B) Decreased in Chronic Bronchitis, (C) Increased in Bronchial Asthma, (D) Decreased in Bronchial Asthma
Answer is A. There is histologic definition of chronic bronchitis by increased Reid index. Reid index is the ratio between thickness of the submucosal mucus glands (i.e. hyperophy and hyperplasia) in the cailage-containing large airways to that of the total bronchial wall. TEXTBOOK OF PATHOLOGY 6TH EDITION HARSH MOHAN PAGE NO:478