DLCO 就是 一氧化碳瀰漫測試。英語:Diffusing capacity of the lung for carbon monoxide,簡稱DLCO或TLCO )
為一項測量肺泡與血液之間的「氣體交換能力的檢查」。
「DLCO功能減少」 : 任何會影響肺泡氣體 交換的因素都會造成DLCO下降:
最常見就是【肺纖維化、肺炎】
也造成了「肺容量 (TLC)下降」
其他複雜肺功能障礙系數不在此呈現,有醫療背景自行參考原文。( Abnormalities were detected in the pulmonary function tests in 75.4% of the patients. 10.5%), 8.7%, 43.8%, 12.3%, and 52.6% patients had FVC, FEV1, FEV1/FVC ratio, TLC, and DLCO values less than 80% of predicted values, respectively. 49.1% and 22.8% patients had PImax and PEmax values less than 80% of the corresponding predicted values. )
(a significant negative correlation between the extent (%) of radiographic abnormalities and FVC (r = 20.23, p = 0.02), TLC (r = 20.22, p = 0.02), TLCO (r = 20.29, p,0.01), and KCO (r = 20.22, p = 0.02) with a trend towards a negative correlation with VC (r = 20.17, p = 0.07).)