The Effect of Age on the Change of Pulmonary Performance for Normal Individuals and Patients with Asthma

Dalya A. Ali Al-Eqabi

Abstract: Many respiratory diseases can be diagnosed by spirometer such as asthma chronic obstructive pulmonary disease COPD and upper air way obstruction UAO. Asthma is a common disease and in severe cases are life threatening (1), it becomes more sever if mixed with infection other respiratory disease (2).

Keywords: Asthma, Respiratory diseases, Vital capacity, Forced vital capacity, Forced expiratory, Pulmonary function