Years ago it may have been kernicterus in an Rh baby, pre RhoGAM. RhoGAM
is the main reason we see very little lethal jaundice in US now days.
Jaundice that causes kernicterus is usually related to a blood
incompatibility problem, like Rh or ABO or a congenital problem like
biliary atresia. Physiologic jaundice is another story, as is starvation
jaundice (BF Mismanagement jaundice) and true breast milk jaundice. The
problem comes when you try to use one set of standards for the whole
range of reasons for jaundice. That is why the decision tree is so
useful. Sincerely, Pat in SNJ