Which of the following is FALSE concerning renal handling of glucose?
A) The maximum rate of glucose filtration is 375 mg/min.
B) The maximum rate of glucose reabsorption is 375 mg/min.
C) Once glucose concentration in the plasma exceeds the renal threshold, glucose will be excreted in the urine.
D) Glucose is actively reabsorbed in the proximal tubule.
E) Glucose is completely reabsorbed when its plasma concentration is 100 mg/dL.

Question

Quizplus · Accepted Answer

The maximum rate of glucose filtration is determined by the glomerular filtration rate and the plasma concentration of glucose, not a fixed value like 375 mg/min. The concept of a maximum rate applies more accurately to the tubular reabsorption capacity (Tm) for glucose, which can be overwhelmed, leading to glucosuria when plasma glucose levels exceed the renal threshold.

Which of the Following Is FALSE Concerning Renal Handling of Glucose