The most common causes of end-stage renal disease are:
a. inadequate fluid intake and malnutrition.
b. high protein and sodium intakes.
c. hypertension and diabetic nephropathy.
d. kidney stones and urinary tract infections.
Question 2
The main function of the proximal tubule of the glomerulus is:
a. reabsorption of nutrients.
b. secretion of hydrogen ions to maintain acid-base balance.
c. exchange of water and sodium.
d. reabsorption of water.