Hypophosphatemia - Differential Diagnosis Algorithm

 • Decreased intake/absorption: Starvation, Alcoholism, Malabsorption, Phosphate binder use

 • Redistribution/ Shift into cells

    - Acute- without depletion: Respiratory alkalosis, Insulin, Catecholamines

    - Acute- with depletion: Refeeding (starvation, alcoholism, malabsorption), Hungry bone syndrome

 • Renal losses: FGF23, PTH, Fanconi, Post transplant, Diabetes, Alcoholism



Dominique Tomacruz, MD @DTomacruzMD



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