Pulmonary Circulation with Reference to Venous Admixture

Response of Pulmonary Venous Admixture*

T he efficacy of various types of pulmonary therapy is often questioned. This may stem from investigative methods. Evaluation of pulmonary gas exchange usually involves the determination of arterial oxygen tension (Pa02) and the calculation of the alveolar-to-arterial oxygen tension difference (P[Aa]O2), or pulmonary venous admixture, while pure oxygen is administered. Evaluation performed with...

Venous admixture to the pulmonary circulation in human subjects breathing 100 per cent oxygen.

Models of venous admixture.

Medical students, residents, and allied health professionals often have difficulty quantitating ventilation-perfusion mismatch in ill patients. This manuscript quantitates ventilation-perfusion mismatch using the underlying physiological concepts and equations that describe mismatch. In addition, clinical problems with diagrams and worked-out solutions are supplied to help students master these...

Cardiopulmonary effects of pulmonary venous hypertension with special reference to pulmonary lymphatic flow.

THE development of pulmonary edema in mitral stenosis is often attributed to increased left atrial pressure. Moreover, pulmonary edema is commonly observed in patients with high left atrial pressure from any cause. It is remarkable, however, that pulmonary edema does not necessarily occur even at left atrial or pulmonary "capillary" pressure considerably above plasma oncotic pressure.' 2

Study of HIV seroprevalence in Pulmonary Tuberculosis Patients with Special Reference to Multidrug Resistant Mycobacteria

This study was planned to determine HIV seroprevalence among pulmonary tuberculosis patients, to characterize the isolated mycobacteria into typical and atypical strains and to evaluate the drug resistant pattern of mycobacterial isolates. The study aims to correlate multidrug resistance (MDR) and HIV seropositivity status in pulmonary tuberculosis patients. During the year 1994-1997, 750 pulmo...