Which treatment is commonly used for significant neonatal jaundice due to unconjugated hyperbilirubinemia?

Which treatment is commonly used for significant neonatal jaundice due to unconjugated hyperbilirubinemia?

• A. Phototherapy
• B. Antibiotics
• C. Oral rehydration
• D. Surgery

Answer: (A)

Phototherapy is the standard approach for significant neonatal jaundice from unconjugated bilirubin because blue light converts the lipid-soluble bilirubin into water-soluble photoisomers that can be excreted without needing the liver to conjugate it. This rapid reduction in serum bilirubin helps prevent neurotoxicity and is noninvasive and widely used in both term and preterm infants. Other options listed don’t address the bilirubin directly: antibiotics don’t affect bilirubin metabolism, oral rehydration helps hydration but not the bilirubin burden, and surgery isn’t indicated for this condition. In very severe cases, exchange transfusion may be considered if phototherapy alone isn’t enough, but phototherapy remains the common first-line treatment.

Phototherapy is the standard approach for significant neonatal jaundice from unconjugated bilirubin because blue light converts the lipid-soluble bilirubin into water-soluble photoisomers that can be excreted without needing the liver to conjugate it. This rapid reduction in serum bilirubin helps prevent neurotoxicity and is noninvasive and widely used in both term and preterm infants. Other options listed don’t address the bilirubin directly: antibiotics don’t affect bilirubin metabolism, oral rehydration helps hydration but not the bilirubin burden, and surgery isn’t indicated for this condition. In very severe cases, exchange transfusion may be considered if phototherapy alone isn’t enough, but phototherapy remains the common first-line treatment.