Fig. 6

Magnification of Fig. 2a at BE = − 15: Disparity between the base models. The difference between Figge-Fencl (FF, black) and Siggaard-Andersen’s (SA, black dashed) models of plasma (blood with HCT0) is causing the Combined model (red bold) not being exactly aligned with the SA model (green bold dashed) even for otherwise standard conditions (hematocrit 0.45, normal levels of Alb and Pi)