Laboratorio de análisis Echevarne

Non-Invasive Prenatal Testing

Non-Invasive Prenatal Testing

Non-invasive prenatal testing (NIPT) is a blood-based genetic, prenatal screening test of the pregnant mom that screens for common chromosomal conditions that affect a baby’s health.

This non-invasive prenatal testing is indicated to perform a prenatal screening for possible abnormalities in the fetus from week 9 of pregnancy.

Find out more about the NIPT

The Non-invasive Prenatal Test consists of an analysis of the mother's blood to detect abnormalities of the fetus, avoiding performing an amniocentesis and the possible risks that this test entails.

1. Who can take the Non-Invasive Prenatal Test?

This test is indicated for pregnant women of any age from week 9 of pregnancy.

  • In the following situations:
    · Single or twin pregnancy
    · In Vitro Fertilization Pregnancies
    · Pregnancy by egg donation
    · Vanishing Twin (Missing Twin)

2. What does it detect?

  • Down Syndrome (Trisomy 21)
  • Edwards' syndrome (Trisomy 18)
  • Patau Syndrome (Trisomy 13)
  • Turner syndrome (X0)
  • Sex chromosomal trisomies:
    • Klinefelter syndrome (XXY)
    • Jacobs Syndrome (XYY)
    • Triple X syndrome (XXX)
  • 22q deletion syndrome (optional)
  • Four additional microdeletions (optional):
    • Angelman syndrome
    • Prader-Willi syndrome
    • Cri-du-chat syndrome
    • 1p36 deletion
  • Triploidy (69 chromosomes)
  • Fetal sex

3. Delivery and interpretation of results

Delivery time 8 working days. * Sometimes the delivery time may be extended due to technical needs.


LOW PROBABILITY: It confirms by 99% the probability that the fetus does not present the syndromes analyzed. However, it does not rule out the possibility of fetal chromosomal involvement,

HIGH PROBABILITY: To confirm a HIGH RISK result, a definitive diagnostic test is required on the amniotic fluid. It is important that you consult the results with your gynecologist.





It detects conditions that other tests cannot, including molar pregnancy, triploidy, and disappearance of the twin.


The only test that differentiates between maternal and fetal DNA, helping to avoid false positives and false negatives.


It can assess zygosity (if identical), individual fetal sex, and individual fetal fraction * in twin pregnancies.


With a simple sample of maternal blood we avoid putting the fetus at risk.


The test can be done from week 9 of pregnancy.


Accuracy rate greater than 99% for the detection of Down Syndrome.

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