A nurse is collecting data about the fluid status of four clients. Which of the following clients should the nurse identify as being at risk for fluid volume deficit?
A. A client who has NPO status since midnight for an endoscopy.
B. A client who has heart failure and is receiving diuretic therapy.
C. A client who has gastroenteritis and is receiving oral fluids.
D. A client who has end-stage kidney disease who will undergo dialysis.