Non-invasive prenatal test

Non-invasive prenatal screening which avoids unnecessary amniocentesis

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NACE® is a non-invasive prenatal screening that analyses the most frequent chromosomal abnormalities.

It detects abnormalities in chromosomes such us:

  • 21 - Down syndrome
  • 18 - Edwards syndrome
  • 13 - Patau syndrome
  • It also detects the most common abnormalities in sex chromosomes, except for twin gestation.

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Coverage of the NACE test for single pregnancies ordered by they importance*

Coverage of the NACE test for single pregnancies ordered by they importance*


  • More reliable than 1st trimester combined screening.
  • It allows the testing in twin pregnancies*, vanished twins and egg donation. 
  • For women of any age, regardless of body mass index or ethnicity.
  • Can give results with foetal fraction under 4%.
  • NACE® reduces unnecessary amniocentesis.
  • Highest Informative Rate in the market: we obtain results for 99.9% of the analyzed samples.

*Aneuploidies for sex chromosomes not analyzed.

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Scientific societies support the use of NACE test for all pregnant women(*).

lt's especially recommended for women with:

  • An abnormal result in their first trimester screen
  • A previous Down syndrome pregnancy
  • A suspicious ultrasound finding

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*Gregg AR, Skotko BG, Benkendorf JL, et al. : Noninvasive prenatal screening for fetal aneuploidy, 2016 update: a position statement of the American College of Medical Genetics and Genomics. Genet Med. 2016;18(10):1056–65. 10.1038/gim.2016.97

Why a non-invasive prenatal test?

When only a biochemical screening is performed:

Why a non-invasive prenatal test?

Unnecessary concern

Out of every 20 women who test positive for Down syndrome, only one will be carrying a baby with Down syndrome.

False sense of security

Out of every 20 women carrying a baby with Down syndrome, 3 will test negative by biochemical screening.



Report will be delivered in 7-10 working days after receiving the samples in our lab

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Step by Step Provider

Step by Step Provider

Report Example

Report Example


What happens in the case of a positive result

  • Genetic counseling post-test.
  • Comprehensive ultrasound examination.
  • Results confirmation by genetic diagnostic testing (ammiocentesis or CVS).

Depending on the screening results, diagnostic testing approach should be karyotype and:

  • Rapid prenatal testing by qfPCR
  • Rapid prenatal testing by FISH.
  • Microarrays for prenatal diagnosis.

Do you want to start using our Genetic Services?

For further assistance please contact our customer support team by phone or e-mail

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