Causes of Hyperphosphatemia - Differential Diagnosis Algorithm Serum phosphate level >4.5 mg/dL • Spurious hyperphosphatemia • True hyperphosphatemia • Excess intake: Phosphate soda preparation, High phosphorus containing food • Cellular breakdown: Rhabdomyolysis, Hemolysis #Hyperphosphatemia #Causes #Differential #Diagnosis #Algorithm #nephrology