<prompt> All of the following are causes of hypovolemic hyponatremia lead to urine sodium 20 except?Renal lossesVomitingCerebral salt wasting syndromeMineralocoicoid deficiency  <response>: OPTION B - Vomiting It will induce dehydration and lead to renal conservation of salt and water . OPTION A - Renal Losses Tubular damage explains salt wasting and high urine sodium. OPTION C - Cerebral salt wasting syndrome Release of BNP will promote natriuresis and salt wasting . OPTION D - Mineralocoicoid deficiency Aldosterone deficiency will also cause salt wasting . 