Which best explains why a person who has uncontrolled diabetes mellitus voids a large amount of urine?
A) Excess glucose "spills over" into urine, thereby decreasing the solute concentration of urine (and decreasing the solute concentration of plasma), which in turn leads to diuresis.
B) Excess glucose "spills over" into urine, thereby increasing the solute concentration of urine (and decreasing the solute concentration of plasma), which in turn leads to diuresis.
C) Low levels of insulin stimulate the kidney to not reabsorb water in the tubules.
D) Decreased glucose is caused by withdrawal of sugar from urine, causing an increase in urine production.

Question

Quizplus · Accepted Answer

Excess glucose in the blood due to uncontrolled diabetes mellitus leads to glucose "spilling over" into the urine. This increases the solute concentration of the urine, which osmotically draws more water into the urine, resulting in increased urine production or diuresis.

Which Best Explains Why a Person Who Has Uncontrolled Diabetes