When plasma glucose concentration exceeds the renal plasma threshold,
A)the glomerular filtration rate increases.
B)the volume of urine decreases.
C)glucose is secreted into the peritubular capillary.
D)glucose appears in the urine.

Question

Quizplus · Accepted Answer

When the plasma glucose concentration exceeds the renal plasma threshold, the kidneys are not able to completely reabsorb all the glucose during filtration. Therefore, glucose appears in the urine, a condition known as glycosuria. Choices A, B, and C are incorrect, as a high plasma glucose concentration would not cause an increase in GFR, a decrease in urine volume, nor secretion of glucose into the peritubular capillaries.

When Plasma Glucose Concentration Exceeds the Renal Plasma Threshold