What Is the Importance of the Respiratory System?

Infectious diseases of the respiratory system mainly include upper respiratory tract infection, tracheobronchitis, pneumonia, pulmonary abscess, tuberculosis, etc. Patients often have symptoms such as cough, sputum, hemoptysis, and dyspnea. When obvious symptoms appear, the disease has often progressed to intermediate and advanced stages, so early diagnosis, treatment and prevention are more meaningful. The experimental diagnosis of respiratory infections has important clinical significance for auxiliary diagnosis, judging the type of infection, understanding the heart and lung function and observation of curative effect.