Spirometry Findings in Patients with Chronic Obstructive Pulmonary Disease

Introductions: Clinical diagnosis of chronic obstructive pulmonary disease is often not accurate and treated for prolong duration. This study explores the use of pulmonary function test to confirm the diagnosis and further management of such patients.Methods: This was a cross sectional study conducted at Patan Hospital, Patan Academy of Health Sciences, Nepal. All patients coming for spirometry between June 2012 and May 2013 with the clinical diagnosis of chronic obstructive pulmonary disease were enrolled in the study.Results: Out of 338 patients with clinical diagnosis of chronic obstructivepulmonary disease that underwent spirometry, 80 (23.7%) patients had ratio of forced expiratory volume in one second and forced vital capacity less than 70%. Out of these 80 patients, 50 (14.8%) had irreversible airway obstruction and 30 (8.9%) had reversible airway obstruction. Patient with normal spirometry findings was 258(76.3%).Conclusions: Clinically diagnosed chronic obstructive pulmonary disease is best confirmed by spirometry for optimum management.Keywords: chronic obstructive pulmonary disease, pulmonary function, spirometr