it is proposed that in pregnancies complicated by red cell isoimmunisation the severity of the disease should be assessed and treated on the basis of the deviation of the fetal haemoglobin from the normal mean for gestation into mild ( haemoglobin deficit less than 2 g/dl ) , moderate ( deficit 2-7 g/dl ) , and severe ( deficit greater than 7 g/dl ) .
C0015936
fetal
C0019046
haemoglobin