Genetic testing is a kind of medical test that helps in the identification of changes in chromosomes, proteins, or genes. Also useful for detecting mutations in DNA that could lead to genetic diseases, genetic testing is extremely beneficial in providing complete information about an individual’s genes as well as chromosomes. In genetic testing, a range of tests on samples of DNA (taken from blood, saliva, hair, skin, amniotic fluid, and other tissues) is carried out. The DNA is sent to the laboratory where specific changes are identified so as to find any genetic disorder. Later, the laboratory results are sent to the person’s doctor or genetic counselor for further discussion. When it comes to results, genetic tests either confirm or rule out a suspected genetic condition or help in the determination of a person’s chance of developing or passing on a genetic disorder.
Did you know that more than 2,000 genetic tests are in use and more are in development? In case, you have questioned the need for genetic testing, learn that it is performed on a person or family for specific medical purposes. As far as the reasons are concerned, pre-implantation genetic diagnosis (PGD), prenatal testing, carrier testing, predictive genetic testing, diagnostic genetic testing, and pharmacogenetic testing are to name a few. While in PGD, the screening an embryo for a genetic disease is done, prenatal testing helps in finding a genetic disease in an unborn baby. Similarly, every genetic testing reason has a strong base behind it.
Genetic testing applied to reproductive medicine helps in improving the chances of having a healthy baby. When in vitro fertilization (IVF) is used, preimplantation genetic testing (PGT) helps in checking abnormal chromosomes or genes. The purpose of PGT is to prevent the transfer of genetically unhealthy embryos to the uterus. This type of genetic testing with IVF helps in improving the likelihood of a healthy live birth. Genetic testing for embryos is advisable for women 38 years or older, using IVF for getting pregnant as well as women who have had failed IVF procedures, recurrent miscarriages, and couples with genes for serious medical conditions. That said, let’s shed light on PGS testing. Preimplantation genetic screening or PGS for aneuploidy is a powerful genetic test that may be performed on embryos during IVF treatment. The prime purpose of PGS is to screen for numerical chromosomal abnormalities. Performed on a small embryo biopsy prior to transfer, PGS helps in identifying which embryos are chromosomally normal. As far as the PGS testing success rate is concerned, it is quite high!
If looking forward to know more about IVF or genetic testing, contact us forthwith!