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Non-invasive prenatal genetic test


Nova Clinic is glad to offer their patients a genetic screening for fetal chromosomal mutations through the analysis of the mother’s blood sample with the help of next-generation sequencing (NGS) technique.

Non-invasive genetic test helps detect most wide-spread chromosomal pathologies:

  • Down’s syndrome
  • Edwards' syndrome
  • Patau's syndrome
  • Klinefelter's syndrome
  • Turner's syndrome

A patient receives the geneticist’s medical conclusion as well as the results of the test.

Advantages of non-invasive prenatal test

  • Safety

There is no contact with an embryo’s membrane, which, otherwise, may cause miscarriages or other complications. A venous blood sample collected from a woman is quite enough to perform the test. All these are safe both for the mother and the fetus.

  • High accuracy

The non-invasive test uses fetal DNA, which, unlike an ultrasound and a biochemical screening, is a direct diagnostic technique with accuracy up to 99,9%. It should be also noted that the percentage of inaccurate (false-positive) results is inferior than 0,1% .


The test can be recommended to all pregnant women who want to obtain additional information on their babies’ health condition. However, the test is usually recommended to women running a high risk of having a baby with chromosomal mutations:

  • when a women is over 35
  • when a man is over 42
  • ultrasound or a biochemical screening indicate to a high risk of developing a chromosomal pathology
  • balanced chromosomal alteration has been found in one of the parents

Restrictions on a non-invasive prenatal diagnosis

  • pregnancy term is less than 10 weeks
  • multifetal pregnancy
  • blood transfusion (over two recent years)
  • organ transplant operations or treatment with stem cells
  • oncological diseases
  • IVF with donor egg cells
  • surrogacy

Non-invasive prenatal diagnosis includes the following steps

  • collection of a venous blood sample
  • blood sample screening for fetal chromosomal pathologies
  • calculation of an individual risk of having a baby with chromosomal mutations
  • geneticist’s medical conclusion on the mother’s health condition