Correct Answer: A

Rationale: Furosemide is a loop diuretic that inhibits sodium and chloride reabsorption in the ascending limb of the loop of Henle, leading to increased excretion of sodium, chloride, and water. The scenario reports a substantial urine output after administration, consistent with its diuretic action. This response helps in managing conditions like hypertension, heart failure, and edema. Other listed options do not align with Furosemide’s pharmacologic mechanism, as it does not influence hepatic metabolism, gastrointestinal motility, or filtration rates directly. The observation of increased urine volume confirms effective diuresis, which is the therapeutic intent of this medication.

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