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?

A. Correct. Furosemide is a loop diuretic that helps eliminate excess fluid and sodium from the body by increasing urine production. Increased urinary output is an indication that the medication is effectively managing fluid overload, a common issue in heart failure. B. Incorrect. While a decreased BUN (blood urea nitrogen. level might occur due to improved kidney function, it is not a direct indicator of furosemide's effectiveness. C. Incorrect. An increased weight suggests fluid retention, which would not indicate the effectiveness of furosemide. D. Incorrect. Decreased hemoglobin levels may be due to various factors and are not directly related to the effectiveness of furosemide.