title: A simple method for rapid estimate of pulmonary venous admixture.
abstract: Data from 2,298 measurements of pulmonary venous admixture (QS/QT) performed in 733 patients were analyzed and processed in order to develop a method for rapid and reliable estimation of QS/QT by a simplified approach. Formulae and charts were obtained, which are easily suitable for use in all settings, and permit estimation of QS/QT with an 85%-93% control of its variability (r2 = 0.85-0.93, p less than 0.0001) simply on the basis of the measured arterial and central venous O2 tensions or saturations.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D008875:Middle Aged; D010100:Oxygen / Q000097:blood*; D011652:Pulmonary Circulation; D011653:Pulmonary Diffusing Capacity; D011667:Pulmonary Veins; D014692:Ventilation-Perfusion Ratio
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen