![]() ![]() This was primarily due to large in crease of tidal volume compared with the increase of dead space in exercise. 4.Slight reduction of the ratio of dead space to didal volume in exercise compared with resting state was observed in all groups, even in normal group. tuberculosis and the reason was primarily an increase in respiratory dead space even in resting state. The large increase in the ratio of dead space to tidal volume observed in those patients with F-A pulm. The tidal volume and respiratory dead space were significantly elevated not only in resting state but also in exercise in these patients with F-A pulm. The uneffecive wnfilation rate and uneffecive pulmonary blood flow rate were determined by the ratio of respiratory dead space to tidal volume and the ratio of venous admixture to cardiac output, respectively. (Particularly, Determination of Uneffective Ventilation Rate and Uneffective PuImonary Blood Flow Rate)ĭepartment of Thoracic Surgery, College of Medicine, Pusan National UniversityĪlveolar function, particularly the ventilation-perfusion relationship with the determination of the ineffective ventilation rate and the ineffective pulmonary blood flow rate, was studied in 11 normal human beings and in 60 patients of F-A pulmonary tuberculosis, classified as Fibro0cavitary group, Diffuse Miliary and Nodular group and Diffuse Exudative group. STUDY OF ALVEOLAR FUNCTION IN PATIENTS OF FAR-ADVANCED PULMONARY TUBERCULOSIS Tuberculosis and Respiratory Diseases 1966 22:21-35. ![]()
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