Preimplantation Genetic Diagnosis (PGD)
Preimplantation genetic diagnosis (PGD) is a procedure where a single cell can be mechanically removed from an embryo on day three of its culture after in vitro fertiliization (IVF). This cell can then be tested for defective chromosomes. If the cell is determined to be normal, then the embryo from which it came can be transferred back to the patient without risk of transmitting a genetic disease. PGD is primarily applied in patients that have inherited chromosomal abnormalities, genetically transmitted diseases, or who have suffered recurrent early pregnancy loss.
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