To evaluate the neonate’s liver function

To differentiate physiologic from pathologic hyperbilirubinemia

To aid in the differential diagnosis of jaundice and monitor its progress

To determine whether a neonate requires an exchange transfusion or phototherapy because of dangerously high unconjugated bilirubin levels

Tell the parents that a small amount of blood will be drawn from the neonate’s heel. Tell the parents who will perform the heelstick and when.

Fasting isn’t necessary for the neonate.