Paternity Pre-natal

Prenatal Paternity Testing is a genetic test that allows paternity to be assessed during pregnancy, without having to wait until the baby is born.

The test is based on the analysis of fetal cell-free DNA circulating in the mother’s blood and its comparison with the genetic profile of the alleged father. This approach has been studied as a non-invasive method for prenatal paternity testing.

How is the test performed?

  • Venous blood is collected from the mother for analysis of fetal cell-free DNA.
  • A DNA sample is collected from the alleged father, usually using a swab from the inside of the cheek.
  • The genetic profiles are analyzed and compared to assess the biological relationship.

Main Advantage
The test is non-invasive for the pregnancy, as fetal DNA is analyzed from the mother’s blood and no direct collection of fetal material is required for this purpose. This distinguishes it from invasive procedures such as amniocentesis or chorionic villus sampling, which are used for other prenatal diagnostic indications.

What does the result show?
The analysis evaluates whether the genetic profile of the fetus is consistent with that of the alleged father.
The result may:

  • Support biological paternity, with a very high probability;
  • Exclude biological paternity when the genetic profiles do not match.

Legal or Non-Legal?
Legal Prenatal Paternity Testing is performed using controlled procedures for participant identification and sample documentation when the result is required for official or legal purposes.

Non-Legal Prenatal Paternity Testing is performed for personal information and does not follow the procedures required for judicial use.

 

 

FAQs

01

What is Prenatal Paternity Testing?

 

It is a genetic test that allows paternity to be assessed during pregnancy by analyzing fetal DNA circulating in the mother’s blood and comparing it with the DNA of the alleged father.

02

How is the sample collected?

 

A venous blood sample is collected from the mother, while a cheek swab is usually collected from the alleged father.

03

Is it safe for the baby?

 

Yes. In the non-invasive version, fetal DNA is analyzed from the mother’s blood, without the need to directly collect a sample from the fetus.

04

From which week of pregnancy can the test be performed?

 

This depends on the method used and the laboratory performing the analysis.

05

Does the mother need to be present?

 

Yes. A blood sample from the mother is required to analyze the fetal cell-free DNA circulating in her bloodstream.

06

Does the mother also need to be tested?

 

Yes. The mother’s blood is used to identify and analyze fetal cell-free DNA.

07

Does the alleged father need to be tested?

 

Yes. A DNA sample from the alleged father is required to compare the genetic profiles.

08

What does the result show?

 

The result determines whether the genetic profile of the fetus is consistent with the profile of the alleged father. The report may indicate a probability of paternity or exclude biological paternity.

09

Can the test be performed for legal purposes?

 

Yes, if offered as a Legal test, the sample collection and documentation procedures must comply with requirements for participant identification and maintenance of the chain of custody. For legal use, specific requirements should be confirmed in advance.

10

What if I only want it for personal information?

 

It can be performed as a Non-Legal test, which is intended for personal information and does not follow the procedures required for judicial use.

11

Is the test painful?

 

Blood collection from the mother is a routine procedure and may cause only mild discomfort from the needle. The cheek swab for the alleged father is non-invasive and painless.

12

Do I need to fast?

 

Fasting is generally not required for blood collection for this test, but the specific instructions provided by the laboratory should be followed.

13

How accurate is the test?

 

Accuracy depends on the method, sample quality, and laboratory performing the analysis. Therefore, for the laboratory website, it is preferable to state the specific accuracy value declared by your laboratory rather than using a general percentage.

14

Can the test be performed during any pregnancy?

 

The gestational age, type of pregnancy, and the laboratory’s requirements should be evaluated before sample collection. For specific cases, prior consultation with the laboratory or physician is recommended.