The patient with exacerbation of congestive heart failure is at risk for fluid volume overload. This patient’s sodium and potassium are both low, which could be dilutional. The patient’s hemoglobin and hematocrit appear to be adequate, so transfusing whole blood is likely inappropriate and should be clarified. The patient needs to be fluid restricted rather than receiving hypotonic maintenance fluids, so the 0.45% NaCl maintenance should be questioned as well. The nurse questions the furosemide order due to the patient’s low potassium level.