A nurse is administering bumetanide to a client who has ascites. The nurse should recognize that which of the following findings is an expected therapeutic effect of this medication?

The correct answer is B: Increased urinary output. Bumetanide is a loop diuretic that works by inhibiting sodium and chloride reabsorption in the ascending loop of Henle, leading to increased urinary output. This helps reduce fluid retention in conditions like ascites. Choice A is incorrect as bumetanide actually increases the excretion of urine sodium. Choice C is incorrect as bumetanide does not affect serum glucose levels. Choice D is incorrect as bumetanide typically decreases blood pressure due to its diuretic effect.