In diabetes mellitus, why does polyuria occur?
A) Hyperglycemia causes some glucose to remain in the renal tubules which pulls water with it by osmosis.
B) Hyperglycemia causes increased permeability of the renal tubules to water.
C) Hypoglycemia causes the excretion of a dilute urine.
D) A lack of insulin decreases water reabsorption.
E) A lack of ADH decreases water reabsorption.
Answer: A) Hyperglycemia causes some glucose to remain in the renal tubules which pulls water with it by osmosis.
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