A 38 week infant is 225 grams above birthweight on DOL 3 and…

A 38 week infant is 225 grams above birthweight on DOL 3 and remains on the ventilator support for management of congenital pneumonia. His urine output is 1 ml/kg/hr for the last 24 hours. He is on TPN and has a UAC with normal saline infusing. Total fluids are 75 ml/kg/day. His sodium today is 131. How will you manage his sodium level?