Simulation of relative plasma volumes (RPVH) derived from central hematocrit (Hc) according to Eq. 5 assuming a constant Fcells=1 (i.e. single-pool characteristics for hematocrit, full line), a constant Fcells=0.9 (i.e. steady double-pool characteristics for hematocrit, broken line), or a variable Fcells increasing from 0.9 to 1 (i.e. variable double-pool characteristics for hematocrit, dotted line), for baseline hematocrit H0 and a hematocrit increase representative of this study.