Hyperphosphatemia

Background

Major Causes

Clinical Features

Differential Diagnosis

Evaluation

Labs

Symptoms usually related to associated renal failure, hypocalcemia or hypomagnesemia

  • Metabolic Panel (with calcium, Magnesium, and Phosphorus)

Management

Hyperphosphatemia treatment

  • Treat the underlying cause
  • Restrict calcium phosphate intake
  • IV Normal Saline (if normal renal fx)
  • Acetazolamide (500mg IV q6hr) - if normal renal function
  • Phosphate Binder - Aluminum hydroxide (50-150mg/kg PO q4-6h) - limited effect
  • Dialysis if refractory

Disposition

See Also

References

  1. Hawley C. Serum phosphate. Nephrology. Apr 2006. 11(S1):S201-5.