snímek PPT
For all substances in a steady state the following eq. is valid:
In case of a resorption with a saturation point (threshold), renal excretion is dependent on the maximal resorption rate and on the affinity of the transporters to the substance
3. Resorption with a threshold and a high affinity: everything under the resorption maximum is resorbed (glucose, some aminoacids); excretion is an effective regulator of plasma concentration in the region of bending of the resorption curve, Fig. 8