<prompt> Which one of the following drugs is used for fetal therapy of congenital adrenal hyperplasia ?HydrocoisonePrednisoloneFludrocoisoneDexamethasone  <response>: These patients with congenital adrenal hyperplasia require lifelong treatment.Patients with salt wasting and virilizing forms should be treated with hydrocoisone10-15 mgm2dayand fludrocoisone 0.1mgday.After completion of growth ,synthetic glucocoicoid preperations dexamethasone,prednisolonecan be used. Reference: OP Ghai,essentiL paediatrics,8 th edition,page no 527 