A pregnant woman referred to fetal medicine at 12 weeks . She has a previous baby with Thalassaemia major who requires frequent blood transfusion . She and her husband both have been investigated and found to be carrier of Thalassaemia.
G.Chorionic villus biopsy
J.10 procedures monthly
K.10 procedures annually
L.20 procedures monthly
M.20 procedures annually
N.Repeat red cell antibody test
O.No concern for red cell antibody as screen is negative
P.Offer Anti D immunoglobulin prophylaxis
1.What procedure will you advise her ?