A nurse is collecting data from a client who has heart failure and is taking furosemide. Which of the following findings should indicate to the nurse that the medication is effective?

Choice A reason: Furosemide, a diuretic, increases urine output, reducing fluid overload in heart failure. This relieves pulmonary edema, showing the drug’s effectiveness clearly.Choice B reason: Decreased hemoglobin isn’t tied to furosemide’s action; it reflects anemia, not fluid status. It doesn’t indicate diuretic efficacy in heart failure management.Choice C reason: Weight gain signals fluid retention, opposite furosemide’s goal. Effective diuresis reduces weight, so this suggests treatment failure, not success.Choice D reason: Decreased BUN may occur, but it’s not a primary furosemide marker. Urine output directly measures diuretic effect, making this less indicative.