recommended management is rapid descent to low altitude at earliest indication of cerebral or pulmonary oedema , intravenous dexamethasone or betamethasone in large doses , hydration , diuresis ( frusemide has been most used ) , and perhaps other intravenous therapy with hyperosmolar materials such as mannitol , urea , 50 % saline , or 50 % sucrose .
C0034063
pulmonary oedema
C0024730
mannitol