Hypernatremia

• Urine Osm

• < 800 mOsm/kg > 800 mOsm/kg

• Renal H2O Loss Insensible H2O loss

• GI H2O Loss

• Decreased Na intake

• DI Osmotic Diuresis (Uosm> 1400 mOsmoles)

• CDI NDI Glucose

• Mannitol

• Urea