<prompt> Shanti has been diagnosed to have brain tumor. You would prefer to give her betamethasonedexamethasonc over hydrocoisonc as steroids to decrease her cerebral edema because:They do not cause Na and water retentionThey are more potentThey can be administered intravenouslyThey inhibit brain tumours  <response>: Ref: KDT 6e p285 Triamcinolone, betamethasone, dexamethasone and paramethasone are selective glucocoicoids have zero mineralocoicoid action. These are preferred for cerebral edema because they lack salt and water retaining potential mineralocoicoid action. 