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. Increase in urine output: An increase in urine output indicates improved renal perfusion and effective rehydration. It is a key sign that fluid volume status is improving and that IV fluid replacement therapy is working as intended. B. Increase in heart rate: A rising heart rate is often a compensatory response to hypovolemia. If heart rate increases, it may indicate ongoing fluid volume deficit rather than effective treatment. C. Decrease in blood pressure: A drop in blood pressure would suggest worsening fluid volume deficit or ineffective fluid replacement. Effective treatment should stabilize or raise blood pressure to normal levels. D. Decrease in dependent edema: Dependent edema is associated with fluid volume excess, not deficit. A reduction in edema would not be an expected or relevant indicator of successful treatment for fluid volume deficit.