Final answer:
Unconjugated hyperbilirubinemia is treated using phototherapy, which involves using UV light to break down bilirubin quickly in newborns.
Step-by-step explanation:
Unconjugated hyperbilirubinemia is treated using phototherapy. Phototherapy uses UV light to help break down bilirubin quickly in newborns with high levels of circulating bilirubin. This treatment is important because high levels of bilirubin can cause brain damage in newborns.