肺功能检查-呼吸系统课件.ppt

1、VTIRVERVRVICFRCVCRVTLCNormal respiration basal lineForced expiratory basal line500mlForced inspiratory basal line051423Liter165432FVCFVCFEV1FEV1COPD3.9 005.2 002.3 504.1 5080%60%NormalCOPDFVCFEV1FVCFEV1/Seco nds83%Normal 96%99%FVC10075502500234Lung diseasenormalFlowL/sVmax 75%Vmax 50%Vmax 25%Flow-Vo

2、lume Curve（V-V Curve）流量容积曲线 Volumegraphically depicts the rate of airflow on the Y-axis and the total volume inspired or expired on the X-axisMVV active/predictive%VC active/predictive%(5)(5)气道阻塞可逆性测定气道阻塞可逆性测定 Bronchodilator Reversibility Testing FEV1 After-FEV1before FEV1 before 100%PEFmax-PEFmin1/2(PEFmax+PEFmin)100%Body plethysmographyFlow-Volume Curve（V-V Curve）10075502500234Lung diseasenormalFlowL/sVmax 75%Vmax 50%Vmax 25%Flow-Volume Curve（V-V Curve）流量容积曲线 Volume