Prenatal DNA screening test

A safe test to know the chromosomal health of the baby.

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What is a prenatal DNA screening test ?

It is a maternal blood test that detects the baby’s cells to assess, from the early stages of pregnancy, the risk of chromosomal abnormalities and genetic alterations that could compromise the pregnancy or the baby’s health.

When is it used ?


It is recommended for any pregnant woman

Especially for women over 35 years of age, or with a history of malformations during pregnancies, recurrent miscarriages or parents with genetic abnormalities.

Benefits of the Prenatal DNA screening test

It is a non-invasive and totally safe test.

It allows early detection of serious anomalies.

It is highly reliable and accurate, with a detection rate of 99.65%.

Reduces the need for amniocentesis.

Can be performed from the 11th week of pregnancy onwards.

How is it done ?

This simple test is safe for the mother and baby. Blood is taken from the woman’s arm. In the laboratory, we identify the foetal DNA present in the blood and analyse it. In case of a positive suspicion, a diagnostic test such as chorionic villus sampling or amniocentesis is performed.

Three different options

You can choose between test Basic Plus, test Premium, or test Excellence. The difference between them lies in the number of chromosomal abnormalities you want to assess the risk for, whether you also want a risk calculation for deletions, or if you prefer the most comprehensive study including microdeletion analysis.

Any questions ?

We are here to answer any questions you may have about this or other techniques and treatments. We will get back to you as soon as possible.

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FAQs about the Prenatal DNA screening test


Is it advisable to take the test ?
It is an increasingly common test that provides reassurance and offers solutions. It is also completely safe for both mother and baby.
At what point in pregnancy can it be done ?
This test can be performed starting at week 10 of pregnancy, when there is sufficient fetal DNA circulating in the mother’s blood to obtain accurate results. In the case of twin pregnancies, it can be performed at week 12.
Is further testing necessary if the result is positive ?
Despite its very high accuracy, it is a screening test, so if the result is positive it is recommended to confirm the diagnosis with tests such as amniocentesis or chorionic villus sampling.
How accurate is the test ?
It has detection rates of over 99.65%.