Clinical features and disorder of lung ventilating function asthma patient with emphysema
- Author:
Trinh -- Trung
- Publication Type:Journal Article
- Keywords:
Asthma
- MeSH:
Emphysema;
diagnosis;
physiology;
Pulmonary Ventilation;
asthma
- From:Journal of Medical Research
2004;27(1):82-88
- CountryViet Nam
- Language:Vietnamese
-
Abstract:
Spirometry provides objective information about pulmonary function and assesses the results of therapy. Pulmonary function testes early in the course of COPD reveal only evidence of dysfunction in small airways. Reduction in forced expiratory volume in 1 second (FEV1) and in the ratio of forced expiratory volume to forced vital capacity (FEV1, FVC) occurs later. In severe disease, the forced vital capacity is markedly reduced. Lung volume measurements revealed increase in the total lung capacity (TLC), marked increase in the residual volume (VR), and elevation of the VR/TLC ratio, indicative of air trapping, particularly in emphysema
