Pulmonary ventilation function test method

Pulmonary ventilation function examination is mainly to let the examinee take a deep breath and then exhale forcefully. Through the numerical value, the lung volume of the examinee and the patency degree of respiratory tract can be judged. Through this detection method, early airway disease screening can be carried out. The reference value of female normal lung volume is 1970±381mL, and vital capacity is 3105±452mL.