25. The Urinary System

Tubular secretion occurs in the…

Why are renal failure patients undergoing dialysis at risk for anemia and osteoporosis? What medications or supplements could you give them to prevent these problems?

When the renal threshold for a substance exceeds its tubular maximum:

(a) More of the substance will be filtered

(b) More of the substance will be reabsorbed

(c) More of the substance will be secreted

(d) The amount of the substance that exceeds the tubular maximum will be found in the urine

(e) Both a and d occur