All are true of cerebral salt wasting except -
Cerebral salt-wasting syndrome (CSWS) is a rare endocrine condition featuring a low blood sodium concentration and dehydration in response to injury (trauma) or the presence of tumors in or surrounding the brain. In this condition, the kidney is functioning normally but excreting excessive sodium. Ref Davidson 23rd edition pg 745
Increased urine output
Low intravascular volume
Low uric acid in serum
Decreased vasopressin levels
Miscellaneous