Question

How does the kidney regulate blood pH

Answer 1

The kidneys can regulate reabsorption of carbonic acid in the tubule, increasing or reducing acid secretion. So, urine that is more acidic than normal may mean the body is ridding itself of excess dietary acid and thus making blood pH more alkaline. Ammonia is another way the kidney can regulate pH balance.

Answer 2

Through reabsorption of carbonic acid in the tubule or through ammonia