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?

b. Increased urinary output. Furosemide is a diuretic medication that helps remove excess fluid from the body by increasing urine production and output. In a client with heart failure, one of the indicators that the medication is effective is an increase in urinary output. This can help reduce fluid buildup in the body, which can improve symptoms of heart failure.