Rheumatoid arthritis (RA) is a systemic disease manifested as a symmetric polyarthritis .This is the most common inflammatory arthritis affecting 0.5-2percentage of the worlds population frequently in the 25-55 year old age group and has female predominance . Lung involvement is a common extra-articular manifestation of RA conferring significant morbidity and mortality. Our study is focused to find out the pulmonary function in Rheumatoid arthritis patients and it is compared to normal

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... Materials and Methods A cross sectional case control study was conducted among 30 patients with RA in the age group of 30-50 years and disease duration of 3-5 years. Patients satisfying the 2010 ACR-EULAR criteria of rheumatoid arthritis were selected for the study. 30 healthy subjects were selected for the control group. General examination done and the height and weight were measured. Pulmonary function testing is done by Spirometer. Parameters Forced