Understanding The Different Types Of Paternity Testing

Paternity Testing

There are many reasons that a father or mother of a child or a grown adult would want to get a paternity test done. A paternity test is one of the only ways to conclusively verify if a child was fathered by a particular person. While these tests are not 100 percent accurate, the two types of standard paternity tests given today have a very high accuracy range of being between 90-99% accurate.

In order for a paternity test to be completed, three samples of blood or DNA must be taken. One sample from the child, one sample from the father and one sample from the mother. Both DNA tissue sampling tests and blood sampling paternity tests work well for an accurate testing result.

When Paternity Tests are Taken

For paternity tests on children, it is usually best if the test sample from the child is taken after they are born. On occasion there are also cases when a paternity test is taken when the child has reached the age of maturity or even as an adult. The paternity tests that are done when the child is older are usually done for identification of father verification purposes. This can be the case with disputed wills and in the case of proving one’s adult heritage.

However, in some cases, there are occasions when parents wish to establish paternity before the child is born. This is called prenatal paternity testing. This can carry risks for the child and can be an expensive procedure. That is why it is usually recommended to wait until the child is born to do any paternity testing. Unless there are significant reasons for a prenatal paternity test to be completed, health care professionals recommend using only postnatal paternity testing so the child is not put at risk.

Pre-Natal Paternity Tests

The one paternity test that is available for prenatal with less risk is the Non-Invasive Prenatal Paternity (NIPP) test. This test can be done any time after the mother is 8 weeks pregnant. For prenatal testing the NIPP is considered the most accurate and the safest prenatal paternity test. This paternity test is done by using the mother’s blood. Because the baby’s blood is a part of the mother’s blood they are able to isolate the differing DNA’s from this sample. Once this is accomplished they can separate the child’s DNA from the mother’s and establish paternity from the child’s sample.

Standard Blood Paternity Tests vs. DNA Paternity Tests

Both blood tests and DNA are used for paternity tests today. However, the more accurate of the two tests is the DNA test, which can involve blood samples or tissue samples. The reason DNA is sometimes considered the better test is because DNA is a unique fingerprint of only a single individual person and is present in every cell of the human body. By contrast, the standard, older Paternity Blood Tests can only prove the likelihood of paternity. The Blood Paternity test most widely used is the Human Leukocyte Antigens (HLA) test and is 95% accurate at ruling out false paternity claims but is not as conclusive in proving paternity.

Because DNA is 100% unique for each person, it is a much more accurate way of testing for paternity. When a DNA test is conducted there are three samples taken. The DNA for a paternity test is taken from samples from the mother, the father, and the child. Once this is done the results are broken down through laboratory analysis. The analysis is very conclusive because every child receives half of their DNA from their mother and half of their DNA from their father. The DNA taken from the child will be conclusive if the father’s DNA exists in the child up to a 99.9 % accuracy.

If you would like more information about modern paternity testing, contact The Sedona Group of Austin, located in Austin, TX.

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