Hypoglycemia in Newborn Care

A newborn has been admitted to the nursery and is being monitored for signs of hypoglycemia. The nurse is reviewing the newborn's assessment findings, which include a blood glucose level of 45 mg/dL, jitteriness, and diaphoresis. The newborn was delivered via cesarean section, and the mother is a diabetic. As part of the ongoing assessment, which nursing intervention should the nurse prioritize to promote optimal wellbeing for this newborn?