Non-Invasive Prenatal paternity test

General aspects

The non-invasive prenatal paternity test can safely define the paternity before the born of the baby. The non-invasive prenatal paternity test, offers results with the maximum accuracy and it is secure for mother and baby. It is performed only at the DDC (DNA Diagnostics Centre, Fairfield, Ohio, U.S.A.) and it is the most accurate not invasive method available in Italy to determine the paternity of the baby before the born. That advanced procedure uses a technology of the DNA SNP microarray to identify and analyze the DNA of the baby presente in maternal blood.

Accuracy and the probability DNA Test

Accuracy and probability are words often confused.
- Accuracy is a measure of the accuracy of the test. It is also a consequence of the quality of test and personal processes.
- Probability indicates how is plausible the biological relative tested.


The genetic test carried out from the DNA Diagnostic Centre is accurate at 100% because:
- Your DNA test is performed 2 times. Two independently groups perform samples for each case and they compare their results to ensure that it’s the same. So it’s reduced the probability of errors causing to false exclusions, such us contamination or exchange of the sample.
- The laboratory analysing the sample is composed by the specialized technical staff.
- If it is necessary it is made an extended exam. In some case, the laboratory examine additional DNA markers, for ensuring the accurate results. These extended test are useful in difficult case for example as the genetic mutations.
- The laboratory status. The laboratory is equipped with the most recent technological
Innovation about DNA the test. Thermalcycler for PCR, robotics system and genetics analyzer reduce the potential human errors, helping to ensure the accuracy of our results.


The paternity test result consists in a Probability of Paternity.
This value indicates which is the probability the alleged father is a biological father of the
- A paternity probability of 99% or superior indicates the alleged father cannot be excluded to be a biological father of baby. For the paternity test of DDC, usually the probability reached is above 99.99%.
- A probability of paternity of 0% indicates the supposed father isn't the biological father of the baby.

Note: When the alleged father isn't excluded to be a biological father, the probability will be always at 99% or superior (often 99,88% or superior). That percentage is based on calculations performed using the population’s data bank to define the kinship’s probability. The probability of 100% isn’t never pledged because it would need to examine and exclude all man in the world. The results of other tests of kinship will have similar odds. A test on grandparents, for example, will show a probability of relative of grandparents. A maternity test will show a probability of motherhood.
In conclusion, when the results test have a probability of 99% (or greater) or 0%, it’s an accurate test of 100%.

When and how do the test is performed?

It’s suggested to perform this test from the 9 gestation week. It’s required only a maternal  draw blood of the mother and alleged father (child's DNA is in the maternal blood).

Response times

The analysis result is available after 10 working days from sampling.

Please contact directly Tecnobios Prenatale Eurogenlab Laboratory to have other informations.

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