to evaluate the mechanism underlying the decrease in ppa at a given paw in edematous lungs , we measured the quantity of right-to-left shunting of blood ( qs/qt ) with sulfur hexafluoride ( sf6 ) using in situ perfused dog lungs from five control animals , five animals with bronchial occlusion , and eight animals with oleic acid-induced pulmonary edema .
C0034052
ppa
C0024109
lungs