Which condition is associated with decreased clearance of bilirubin in newborns?

• A. Ileus or obstruction
• B. Neonatal sepsis
• C. Maternal hypertension
• D. Congenital heart defects

Answer: (A)

Decreased clearance of bilirubin in newborns is most closely associated with ileus or obstruction. In the context of a newborn, the liver is responsible for metabolizing and clearing bilirubin, a byproduct of red blood cell degradation. When there is an obstruction in the gastrointestinal tract, it can lead to an inability to adequately excrete bile, which contains bilirubin. This accumulation can result in an increase in serum bilirubin levels, leading to jaundice.

While neonatal sepsis can also contribute to jaundice due to various metabolic disturbances, it primarily affects the overall health and may lead to an increase in hemolysis rather than directly impairing bilirubin clearance in the same way as an obstruction would. Maternal hypertension typically does not have a direct impact on bilirubin clearance in the newborn, as it mainly affects the mother and may influence placental blood flow. Congenital heart defects can complicate circulation and oxygen delivery but are not specifically associated with decreased bilirubin clearance. In contrast, an ileus or obstruction directly impairs the elimination of bilirubin from the body.