Multiple choice

The parathyroid hormone does not regulate the concentration of ________ ions in the urine.

  1. phosphate

  2. magnesium

  3. sodium

  4. bicarbonate

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Concentration of bicarbonate ions is not controlled by PTH. Its concentration depends on the buffering capacity of blood in the form of carbonate bicarbonate buffer