HYPERNATREMIA

Hypernatremia Check clinical volume status Hypervolemic/Euvolemic Hypovolemic Salt Excess Exogenous Abuse/Neglect* Iatrogenic Inappropriate formula preparation Endogenous Hyperaldosteronism Water Deficit Fluid losses Renal Loss Osmotic Diuresis Uosm > Posm, Uosm 300–600 Diabetic Ketoacidosis* (Glucosuria) Mannitol Post-obstructive diuresis Polyuric Acute Tubular Necrosis Diabetes Insipidus Uosm < Posm FeNa > 1% UNa <10 Nephrogenic Diabetes Insipidus Central Diabetes Insipidus GI Loss Uosm >600 Gastroenteritis* Insensible Loss Uosm >600 Burns* Sweat Respiratory losses Reduced intake Uosm >600 Abuse/Neglect* Brain Tumour* Hypothalamic dysfunction *Indicates Key Condition This is not an exhaustive list of medical conditions.