Nutrition At birth infants have excess extracelluar fluids. Prior to about 12 hours of age, many laboratory values reflect the mother. When the electrolytes are normal at 12 hours, add maintenance electrolytes. Previous fluid overload or iv excess requires correction in subsequent fluids Dehydration, hyperbilirubinemia , polycythemia, hypernatremia require increased hydration. Indomethacin causes decreased urine output by decreasing renal blood flow.
Treatment is to decrease fluids, and follow the sodium closely.
Do not give the next dose until the urine output recovers. Sodium greater than 145 is not desirable. With chronic lung disease, it may be appropriate for the sodium to drift downward to 130-135 to avoid excessive lung fluid. Hypermagnesemia may cause respiratory depression and decrease GI motility. Stools and bowel sounds are good evidence of GI mobility.