Which of the Following is Not Reabsorbed in the Kidney

Question

Which of the following is not reabsorbed in the kidney tubules?
A) Potassium
B) Hydrogen
C) Sodium
D) Chloride
E) Calcium

Accepted Answer

Hydrogen ions are not reabsorbed in the kidney tubules; instead, they are secreted into the tubular fluid to help regulate the body's acid-base balance.