Renal parenchymal oxygen tension (pO2) measured via a fluorescence probe, as the fraction of O2 (FiO2) is reduced over 65 minutes. The FiO2 is indicated with dashed arrows. The times of blood draws, where blood gas measurements were made (sO2), are indicated by BD.
Crane et al. BMC Surgery 2008 8:8 doi:10.1186/1471-2482-8-8