Prenatal paternity testing can be carried out at different stages of pregnancy, depending on the type of sample taken.
Specifically:
Chorionic villus tissue sampling (CVS): this is usually performed between 6 and 12 weeks of pregnancy.Chorionic villus tissue sampling is a method of extracting cells from the placenta, which are analysed for DNA to confirm parent-child relationships.
Amniocentesis (amniocentesis): am niocentesis is commonly performed between 15 and 20 weeks’ gestation. In this procedure, foetal cells in the amniotic fluid are collected and analyzed for DNA.
There is a method of testing from the mother’s blood. In this method, the fetus’ genes are carried in the mother’s blood and are used to identify the father. The test is possible from the sixth week of pregnancy, as long as the fetus’ genetic material is available. This is prenatal paternity DNA testing.
These methods are invasive and should be performed safely, especially under the direction and consultation of a doctor. Medical risks and ethical issues should also be considered. When carrying out a paternity test, it is important to consult a professional health care provider about the appropriate time and method.
Supervisor of the article
Dr. Hiroshi Oka
Graduated from Keio University, Faculty of Medicine
Doctor of Medicine
Medical Doctor
