A nurse in a cardiac care unit is caring for a client with acute right-sided heart failure. Which of the following findings should the nurse expect?

A. Specific gravity changes relate to kidney function and hydration status, not directly to right-sided heart failure. B. Heparin levels are related to anticoagulation therapy, not heart failure status. C. BNP levels decrease when heart failure improves; decreased BNP is not expected in acute heart failure. D. BNP is released in response to ventricular stretch and volume overload; it increases in acute heart failure as the heart struggles to manage fluid overload.