ISSN: 2319-7064
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