A nurse is caring for a client who has fluid volume deficit and is receiving intermittent IV fluid replacement therapy. Which of the following findings should the nurse identify as an indication the treatment has been effective?

A. Decrease in blood pressure is not a positive indicator in this case; an increase in blood pressure is desired with effective treatment. B. An increase in heart rate typically indicates dehydration or fluid deficit, not improvement. C. An increase in urine output is a positive sign of fluid balance restoration. It shows the kidneys are functioning effectively with sufficient hydration. D. Dependent edema might not decrease immediately, and its presence may not indicate the fluid therapy's effectiveness.