Wednesday, September 14, 2011
Consult Rounds: Hyperphosphatemia
There are three general circumstances in which this occurs: massive acute phosphate load; chronic renal failure; and a primary increase in proximal phosphate reabsorption. The fourth is pseudohyperphosphatemia.
1. CAUSES OF Phosphate Load to consider:
Tumor lysis syndrome
Phosphate Enemas or laxatives
Vitamin D Toxicity
2. RENAL FAILURE is self explanatory
3. Increased Tubular Reabsorption of Phosphate:
4. Pseudohyperphosphatemia from elevated bilirubin, paraproteins, lipids and hemolysis
Hope this simplifies the differential of hyperphosphatemia
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