Diffusion of Gases from Alveolus to Precapillary Arteries

See allHide authors and affiliations

Science  01 Mar 1963:
Vol. 139, Issue 3557, pp. 826-828
DOI: 10.1126/science.139.3557.826


A cardiac catheter with a platinum electrode just proximal to its tip, "wedged" in a branch of the pulmonary artery, was used to demonstrate the appearance of hydrogen or oxygen at the tip of the catheter after inhalation of these gases.