When explaining dietary guidelines to a client with acute glomerulonephritis (AGN), which instruction should the nurse include in the dietary teaching?

A. Select a protein-rich food daily: In acute glomerulonephritis, excessive protein intake can worsen azotemia because damaged kidneys cannot effectively excrete protein byproducts. Protein is usually restricted depending on renal function and degree of proteinuria. B. Eat high-potassium foods: Potassium levels often rise in kidney disorders due to impaired excretion, increasing the risk for hyperkalemia and dangerous arrhythmias. Clients should not be encouraged to consume high-potassium foods unless specifically prescribed. C. Avoid foods high in carbohydrates: Carbohydrates are not restricted in AGN. In fact, adequate carbohydrate intake can provide calories while minimizing the breakdown of body proteins, which helps reduce nitrogenous waste accumulation. D. Restrict sodium intake: Sodium restriction helps control edema and hypertension, both common complications of acute glomerulonephritis. Limiting salt intake is the key dietary recommendation to reduce fluid overload and protect renal function during the acute phase.