Neonatal hyperbilirubinemia: recommendations for diagnosis and management in the emergency department.

Hyperbilirubinemia is one the most common reasons for emergency department visits for the neonate. Most cases of unconjugated hyperbilirubinemia are benign. Although rare, unrecognized or untreated pathologic unconjugated hyperbilirubinemia can lead to the development of acute bilirubin encephalopathy and, ultimately, kernicterus. This issue reviews the emergency department evaluation and management of neonatal hyperbilirubinemia and discusses how to recognize acute bilirubin encephalopathy, with the goal of preventing kernicterus. Recommendations are provided for risk stratification and determining the need for phototherapy or exchange transfusion, using nomograms to plot total serum bilirubin levels and taking into consideration hyperbilirubinemia and neurotoxicity risk factors.