Which statement about fluids and electrolyte balance is true?
A) The concentration of urine is determined by the amount of water in it.
B) The principal electrolyte in the body is potassium.
C) Where salt goes, water will follow.
D) The volume of urine is determined by the amount of sodium in it.

Question

Quizplus · Accepted Answer

The kidney's urine production is the only way to significantly adjust the amount of water and electrolytes in the blood through what leaves the body. The kidney cannot increase the amount of water or electrolytes in the blood, but it can prevent their loss by adjusting how much water and electrolytes may exit during urine production. The principal electrolyte in this process is sodium. Where sodium goes, water usually follows. The volume of urine is determined by the amount of water in it, while the concentration of urine is determined by the relative amount of solutes it contains (sodium), in this case. Another important electrolyte in urine production is potassium.

Which Statement About Fluids and Electrolyte Balance Is True