What dietary modification is recommended for ESRD to manage potassium?

• A. High potassium diet
• B. Moderate potassium diet
• C. No restriction on potassium
• D. Low potassium diet

Answer: (D)

In ESRD, the kidneys can’t excrete potassium effectively, so potassium tends to accumulate in the blood. Too much potassium can disrupt heart rhythm and become life-threatening, especially between dialysis sessions. Limiting dietary potassium reduces the amount entering the bloodstream and helps keep potassium levels within a safer range. This is why a low potassium diet is recommended. A high potassium diet would worsen potassium overload, while no restriction or only a moderate restriction wouldn’t adequately control potassium in the setting of reduced kidney function. Diet plans are usually tailored with a dietitian and adjusted based on lab values and dialysis timing.