Description
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
• Primary Polydipsia
• Central Diabetes Insipidus
• Nephrogenic Diabetes Insipidus
Mixed Diuresis (Urine Osm 100-200 mOsm/kg)
• Water and solute loading
• Relief of prolonged urinary obstruction
• Partial Dl
• Chronic Renal Failure
Solute Diuresis (Urine Osm 300-500 mOsm/kg)
• Hyperglycemia
• Azotemia
• Exogenous solute load
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