The nurse cares for a client in the oliguric phase of acute kidney injury. Which action should the nurse include in the plan of care?

Rationale: A. During the oliguric phase of acute kidney injury (AKI), urine output is significantly reduced (less than 400 mL/day). This leads to fluid retention, edema, and risk of pulmonary congestion. Fluid intake is carefully restricted based on prior 24-hour urine output plus any additional losses (e.g., vomiting, diarrhea, or insensible losses) to prevent fluid overload. B. The oliguric phase of AKI often causes hyperkalemia due to impaired renal excretion of potassium. Foods high in potassium (bananas, oranges, potatoes) should be avoided to prevent life-threatening cardiac dysrhythmias. C. Peritoneal dialysis may be used in some AKI patients, but the question specifies the oliguric phase, not a patient already on dialysis. The immediate nursing priority is managing fluid balance and monitoring for complications of oliguria. D. During the oliguric phase, protein intake is typically restricted, because protein breakdown increases nitrogenous waste (BUN and creatinine), which the kidneys cannot efficiently excrete. High-protein snacks could worsen azotemia.