DNA Testing During Pregnancy
Prenatal DNA paternity tests, commonly referred to as DNA testing during pregnancy, is conducted when a mother wants to confirm the biological father of her child while still in the womb. While common DNA tests use tissue samples provided by the parties involved, this is not possible with an unborn child. In order to complete a DNA test during pregnancy, 1ml of the amniotic fluid is collected and stored on a card provided with the test kit. An equivalent amount of cells taken during a Chorionic Villus Sampling (CVS) can also be used.
The parents can submit their tissue samples utilizing a DNA home test kit or a clinic designated by the company completing the analysis of the samples. If this test is being completed due to legal action currently before the courts, a home kit cannot be utilized and a company using stringent chain of custody procedures will need to complete the sampling process as well as the analysis. This will ensure the results are legally admissible in a court of law.
How safe is a DNA test during pregnancy?
The samples are submitted to the laboratory for analysis with results generally available in 10 – 15 working days. The analysis will look at the DNA results of the fetus and the father to identify common markers that will confirm a biological relationship between the father and child. These tests are 99.9% accurate so both parties involved can have peace of mind before the child is born.
One of the big risks with a DNA test performed during pregnancy is the fact that samples can only be collected using invasive procedures and involve risks to both the unborn fetus and the mother. Amniocentris can be performed from the 14th to the 24th week of pregnancy and is the process of collecting amniotic fluid by inserting a specialized needle into the uterus through the abdomen. Risks in this process include miscarriage in addition to leakage of amniotic fluid as well as leakage of the uterus.
Getting a dna test during pregnancy
Chorionic Villus Sampling can be completed from the 10th to 13th week of the pregnancy where a needle or small tube is used to extract samples of the chorionic villa tissue through the vagina and cervix. This procedure has a small risk of inducing a miscarriage of the unborn child. For these reasons it is important to consult with your doctor before having a DNA test during pregnancy completed.