Fig 1. Capillary filtration coefficients (Kfc) of isolated blood-perfused rabbit lungs without (open columns) and with hydrochloric acid (HCl)–induced lung injury. Hydrochloric acid was instilled after determination of baseline filtration coefficients (time 0). Thirty minutes after induction of injury, partial liquid ventilation (PLV) with 15 ml perfluorocarbon/kg body weight was instituted. Data from 18 isolated blood-perfused rabbit lungs are presented as mean ± SD. P value refers to Mann–Whitney U test.