What is spirometry? When we are having trouble breathing, our doctor might suggest a test called spirometry. It is a common office test used to assess how well our lungs work by measuring how much air we inhale, how much we exhale and how quickly we exhale. Why is it done? Doctor may suggest a spirometry test if he or she suspects symptoms which are caused by a chronic lung condition such as: Chronic bronchitis COPD Pulmonary fibrosis Asthma Emphysema If one already has been diagnosed with a chronic lung disorder, spirometry can be used periodically to check how well his/her medications are working and whether breathing problems are under control. Spirometry may be ordered before a planned surgery to check if our lung function is adequate for the rigors of an operation. Additionally, spirometry can be used to screen for occupational-related lung disorders. Spirometer : Spirometer is a biomedical device which measures lung capacity and lung volume. The construction...