Rhesus haemolytic disease of the newborn, complicating a quadruplet pregnancy.

She was booked at about five weeks' gestation in a small general hospital and transferred to Royal Maternity Hospital, Belfast, at 24 weeks' gestation when quadruplet pregnancy was confirmed. She remained in hospital for six weeks and four days until delivery. There was no past medical history of note, blood group was O-Rh(D) negative and anti-D antibodies were detected (Table). The husband's blood group was O-Rh(D) positive and his probable genotype was CDe/cDE.