A nurse is assessing a client who is taking furosemide to treat heart failure. Which of the following findings should indicate to the nurse that the medication is having a therapeutic effect?

A. While furosemide may lower blood pressure, weight loss due to fluid reduction is a more direct indicator of its therapeutic effect. B. Furosemide promotes diuresis, and weight loss is a sign of decreased fluid retention, indicating effectiveness in treating heart failure. C. An increased heart rate is not a desired effect and may indicate volume depletion or stress. D. Distended neck veins indicate fluid overload and would not suggest a therapeutic effect.