The nurse is caring for a patient in the diuretic phase of acute kidney injury. What complication should the nurse assess for?

A. Peripheral edema: Edema is more commonly associated with the oliguric or fluid-retention phase of acute kidney injury (AKI) due to decreased urine output and fluid overload. During the diuretic phase, excess fluid is being excreted rather than retained, making edema less likely. B. Hypertension: Hypertension typically occurs during the oliguric phase of AKI because of fluid retention and increased systemic vascular resistance. In the diuretic phase, blood pressure may normalize or even trend lower due to rapid fluid loss and potential electrolyte imbalances. C. Pulmonary edema: Pulmonary edema is primarily a complication of fluid overload seen in the oliguric phase. As the patient enters the diuretic phase and fluid is mobilized and excreted, the risk of pulmonary edema decreases. D. Hypokalemia: The diuretic phase involves high urine output and loss of electrolytes, including potassium. Excessive potassium excretion can lead to hypokalemia, which may cause muscle weakness, arrhythmias, and other cardiovascular complications. Monitoring and replacing potassium as needed is a priority during this phase.