The main aim for a DNA test is to confirm the real paternity of the child.
The second aim is that the result of a paternity test can be important for obtaining legal rights like child support, custody, benefits, and inheritance, as well as finding out medical factors that could affect your baby’s health.
A prenatal paternity test checks for a match between the potential parent's DNA(specifically the father) and the baby while the mother is still pregnant. To determine paternity, DNA is taken from the mother and potential father and examined with a series of lab tests called DNA sequencing.
These tests are extremely precise. They show with 99.9% accuracy.
Types of Prenatal DNA Paternity test:
1. Noninvasive prenatal paternity test(NIPP): From the 7th week of pregnancy through the first trimester, you can get a noninvasive prenatal paternity test.
During this test, DNA is collected from the mother by a blood draw and from the father with a cheek swab.
The samples are analyzed to compare the baby’s and possible father’s DNA. In general, results are available after one week.
However, this test is not available for women carrying twins because the current technology can’t isolate DNA from both babies.
2. Chorionic villus sampling(CVS): In this procedure, a small tissue sample is taken from the placenta through the cervix or abdomen.
The sample is then compared to the potential father’s DNA. Generally, the test occurs between 11th week and 14th week of pregnancy. Results can take several weeks.
Unlike NIPP, this invasive sampling procedure does pose a risk to the baby.
CVS can also indicate whether a baby has a chromosomal condition like Down syndrome or genetic disorders like cystic fibrosis.
3. Amniocentesis: During amniocentesis, amniotic fluid is drawn with a needle from the pregnant mother's abdomen. Then, the fluid sample is compared in a lab to DNA taken from the pregnant mother and potential father.
This test typically takes place from 15th week to 20th week of pregnancy.
Prenatal paternity tests can help you get answers to important questions while you’re still pregnant and confirm the child's paternity. Consider your options and speak to your doctor about which option suits your goals.
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