Least reabsorption out of
Reabsorption the flow of glomerular filtrate from the proximal tubule of the nephron into the peritubular capillaries, which allows the selective passage of ceain substances (glucose, proteins, sodium) back into the circulation. Urea is least reabsorbed as it is excreted out. Ref: Ganong's review of medical physiology; 24th edition
Glucose
Urea
Na+
HCO3
Renal physiology