Increases in angiotensin II cause increased Na+–H+ exchange in the proximal tubule and increased HCO3− (bicarbonate) reabsorption in the proximal tubule due to increased luminal H+.
Rises in angiotensin II lead to increased Na+–H+ exchange in the proximal tubule and increased HCO3− (bicarbonate) reabsorption due to elevated luminal H+ concentration.