Elevated blood glucose increases plasma osmolality and initially causes which symptom?

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Multiple Choice

Elevated blood glucose increases plasma osmolality and initially causes which symptom?

Explanation:
Elevated glucose raises plasma osmolality, which is detected by the hypothalamic osmoreceptors. That triggers the sensation of thirst, leading to polydipsia. This thirst response occurs before significant osmotic diuresis develops, so polydipsia is the initial symptom. Polyuria can follow as the kidneys excrete the excess glucose, but it’s not the first sign. Hypoglycemia is not expected with high glucose, and polyphagia is not the immediate osmolality-driven symptom.

Elevated glucose raises plasma osmolality, which is detected by the hypothalamic osmoreceptors. That triggers the sensation of thirst, leading to polydipsia. This thirst response occurs before significant osmotic diuresis develops, so polydipsia is the initial symptom. Polyuria can follow as the kidneys excrete the excess glucose, but it’s not the first sign. Hypoglycemia is not expected with high glucose, and polyphagia is not the immediate osmolality-driven symptom.

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