What should be restricted in a patient with hypervolemic hyponatremia?

In the context of hypervolemic hyponatremia, the key issue is the excess volume of fluid in the body that dilutes serum sodium levels. In this situation, restricting free water intake is crucial to help manage sodium levels effectively. The primary goal is to reduce the excess fluid load that contributes to the dilutional effect on serum sodium.

By limiting free water, the patient can restore a more favorable balance in serum sodium levels as the body's overall fluid volume is decreased, thereby managing the condition more effectively. This approach allows for better regulation and correction of the hyponatremia without exacerbating fluid overload.

The restriction of dietary fluids and sodium intake may be considered in certain circumstances, but focusing specifically on free water is particularly important for addressing the acute dilutional aspect of hypervolemic hyponatremia.