Figure 7. Increases in the PAP-LAP gradient (left pulmonary blood flow = 40, 50, and 60 ml [middle dot] min^-1[middle dot] kg^-1) during hypotension from values measured at baseline in eight dogs in the conscious state and during isoflurane anesthesia. Hypotension-induced pulmonary vasoconstriction (*P < 0.05) observed in the conscious state was attenuated ([dagger] P < 0.05) during isoflurane anesthesia.