PGD
PGD is a technique that can be used during IVF to test embryos for
specific genetic disorders prior to their transfer to the uterus. This
technique makes it possible for couples with certain serious inherited
disorders to decrease the risk of having a child who is affected by
the same problem. A single cell is removed from each embryo that will
be tested. This embryo biopsy is generally performed three days after
the egg retrieval. The cell(s) are then sent to a special genetics laboratory
for testing for the specific disorder. Only the embryos that are free
of the specific disorder are transferred to the uterus. Patients interested
in this technique must also undergo genetic evaluation and counseling.