Source of Support: None, Conflict of Interest: None
Non-specific bronchial responsiveness was assessed in 25 patients of rheumatioid arthritis and 10 healthy controls with the help of methacholine broncho-provocation test. All the patients and controls had normal spirometry, chest skiagram, diffusion capacity and alveolo-arterial oxygen gradient. There was no difference in the mean PD20FEV1, mean reduction in FEV1, the extrapolated PD20FEV1 and slopes of FEV1 vs inhalational dose plots in the two groups. We conclude that there is no significant bronchial hyper-responsiveness in patients of rheumatoid arthritis.