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

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

Disposition

See Also

References

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