Hyperphosphatemia: Difference between revisions
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*Decreased excretion ([[Renal failure]] | *Decreased excretion ([[Renal failure]] | ||
*Transcellular shifts ([[Tumor lysis syndrome]], [[Rhabdomyolysis]]) | *Transcellular shifts ([[Tumor lysis syndrome]], [[Rhabdomyolysis]]) | ||
==Differential Diagnosis== | |||
*[[Calciphylaxis]] | |||
*Vitamin D intoxication | |||
*[[Tumor lysis]] | |||
*Laxative (Phospho-soda) abuse | |||
*[[Rhabdomyolysis]] | |||
*Hypoparathyroidism | |||
*Pseudohypoparathyroidism | |||
*[[Multiple myeloma]] | |||
==Diagnosis== | ==Diagnosis== | ||
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*Insomnia | *Insomnia | ||
==Treatment == | ==Treatment == | ||
Revision as of 02:31, 21 August 2015
Background
- >4.5 mg/dL[1]
Major Causes
- Increased phosphate intake (Vitamin D, laxative abuse
- Decreased excretion (Renal failure
- Transcellular shifts (Tumor lysis syndrome, Rhabdomyolysis)
Differential Diagnosis
- Calciphylaxis
- Vitamin D intoxication
- Tumor lysis
- Laxative (Phospho-soda) abuse
- Rhabdomyolysis
- Hypoparathyroidism
- Pseudohypoparathyroidism
- Multiple myeloma
Diagnosis
Labs
Symptoms usually related to associated renal failure, hypocalcemia or hypomagnesemia
- Metabolic Panel (with calcium, Magnesium, and Phosphorus)
Signs and Symptoms
- Fatigue
- Shortness of breath
- Anorexia
- Nausea
- Vomiting
- Insomnia
Treatment
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
References
- ↑ Hawley C. Serum phosphate. Nephrology. Apr 2006. 11(S1):S201-5.