Spirometry is one type of lung function test — specifically, the measurement of airflow during forced breathing. ‘Lung function test’ is a broader term that encompasses spirometry, oscillometry, DLCO, body plethysmography, FeNO, the 6-Minute Walk Test, and cardiopulmonary exercise testing. When a respiratory disease specialist in Delhi refers to ‘lung function tests,’ they typically mean a combination of these investigations tailored to the clinical question. At Pulmovista Clinics, Dr. Dixit Kumar Thakur selects the most appropriate combination of lung function tests for each individual patient — not a fixed panel applied to everyone.
