Jones KDJ, et al. - This article investigated if the arterial umbilical cord bilirubin (aUCB) level, at delivery speculated the development of neonatal jaundice in the case of term deliveries. The data displayed that aUCB predicted the development of neonatal jaundice, for infants of mothers with blood group O. No evident utility was brought to light for infants of mothers with other blood groups. Estimation of aUCB ought to be taken into account as a strategy for early detection of those at risk of neonatal haemolytic jaundice.