DaVita Peritoneal Dialysis (PD) Practice Exam

To handle high phosphate levels in dialysis patients, which action is recommended?

Take PO4 binders Increase phosphate-rich foods Stop taking phosphate binders Increase water intake

Correct Answer:

Take PO4 binders

Explanation:

Controlling phosphate levels in dialysis patients is achieved by preventing phosphate from being absorbed in the gut. Phosphate binders do this by binding dietary phosphate in the intestinal tract so it’s excreted in the stool rather than entering the bloodstream. They are taken with meals to capture what you eat and are adjusted to keep phosphate in the target range, with monitoring for mineral balance because some binders can affect calcium or other minerals. Increasing phosphate-rich foods would raise phosphate; stopping binders would worsen hyperphosphatemia; simply increasing water doesn’t address phosphate burden. So taking phosphate binders with meals is the recommended action.

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