Differential diagnosis of renal losses causing hypernatremia are :
-diuretic phase of acute tubular necrosis
-post obstructive diuresis
-osmotic diuresis due to hyperglycemia, urea or mannitol
-diuretics
-diuretic phase of acute tubular necrosis
-post obstructive diuresis
-osmotic diuresis due to hyperglycemia, urea or mannitol
-diuretics