A Drug That Blocks the Renal Reabsorption of Sodium

Question

A drug that blocks the renal reabsorption of sodium
A) decreases the renal excretion of Na+.
B) increases the amount of urine.
C) decreases the excretion of bicarbonate.
D) always increases the reabsorption of K+.

Accepted Answer

A drug that blocks the renal reabsorption of sodium would result in an increased amount of sodium remaining in the urine, leading to an increase in the osmotic pressure of the urine and subsequently an increase in the amount of urine produced. The drug's action may also indirectly decrease the reabsorption of other ions such as bicarbonate, but this is not a direct effect. It does not necessarily affect the reabsorption of potassium.