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Non-Invasive Prenatal Testing (NIPT)

Overview

What is Non-Invasive Prenatal Testing (NIPT)?

Non-invasive prenatal testing is a sophisticated screening option available abbreviated as NIPT. Giving crucial insight into a pregnancy's health, it represents a significant advancement in antenatal care with no risk to the foetus. This advanced screening analyses small fragments of foetal DNA that are naturally circulating in the mother's blood. By examining this cell-free DNA, doctors can, with a high degree of accuracy, screen for specific chromosomal conditions.

NIPT is a non-invasive prenatal screening tool and does not replace a diagnostic test. It's highly effective at identifying pregnancies that have an increased chance of certain conditions. Parents and their doctors can make informed decisions through NIPT results, about whether to pursue definitive diagnostic procedures. It exists as a tool allowing families to have the clearest possible picture of their baby's development from an early stage.

Why is NIPT Recommended?

NIPT screening is primarily used to assess the risk of common chromosomal abnormalities. A non-invasive provides peace and is part of modern antenatal care. When necessary, an early alert through NIPT allows for further investigation and preparation.

The conditions most commonly screened for include Down Syndrome (Trisomy 21) which is caused by an extra copy of chromosome 21 and is the most frequent chromosomal condition. Edwards Syndrome (Trisomy 18) is a condition associated with severe developmental delay and Patau Syndrome (Trisomy 13) which is a condition involving severe intellectual disability and physical abnormalities.

NIPT can sometimes provide information about the sex chromosomes and the overall sex of the baby although it primarily focuses on these key trisomy's above. Setting it apart from standard blood work, it's a powerful tool for non-invasive prenatal diagnosis screening due to its high precision.

A discussion about non-invasive prenatal testing is a standard part of quality antenatal care. Patients should consult obstetricians about NIPT if they are in their first trimester which is typically from 10 weeks onwards, and want the earliest, most accurate screening available for common chromosomal conditions.

For patients who've received a borderline or high-risk result from standard first-trimester screening and wish for clearer answers before considering invasive tests like amniocentesis, a NIPT is the start of this journey.

If patients are of advanced maternal age which are typically those 35 years or older, a NIPT test is recommended. This can be associated with a slightly increased risk of chromosomal abnormalities. Patients with a family history of a genetic condition or a previous pregnancy affected by a chromosomal abnormality could benefit from testing. Patients who simply want the most comprehensive information available to feel informed and prepared throughout the pregnancy journey can gain advantage from a NIPT test.

For mothers, the process for a non-invasive prenatal screening test is remarkably straightforward. It begins with a consultation with one of our obstetricians or foetal medicine specialists. To ensure patients always have realistic expectations about what the test can and cannot indicate, the scope, benefits and limitations of NIPT are always explained beforehand.

The test itself is simple, similar to a routine blood draw. A standard blood sample, containing both DNA and the circulating cell-free foetal DNA is taken from a vein in the arm. The sample is sent to a specialised genetics laboratory where it's analysed. The foetal DNA is examined to count the relative amount of genetic material from key chromosomes, such as 21, 18 and 13. An imbalance can indicate an increased chance of a trisomy.

Results are typically available within 7-10 working days and doctors will discuss the findings with patients in detail. If the result is 'low risk', it provides strong reassurance. If the result is 'high risk', it does not mean the condition is definitely present, but that further, definitive diagnostic testing should be considered. We offer expert counselling in these cases, to guide patients through their options.

At NMC, we offer testing that screens for:

  • Trisomy 21 (Down Syndrome)
  • Trisomy 18 (Edwards Syndrome)
  • Trisomy 13 (Patau Syndrome)
  • Conditions involving the sex chromosomes (such as Turner Syndrome or Klinefelter Syndrome)
  • Certain microdeletion syndromes (small missing pieces of chromosomes)

At NMC, we integrate non-invasive prenatal screening into a holistic programme of maternal and foetal care. We believe in empowering parents with knowledge. Part of our approach is not just ordering a test but more so, we provide the context and support that makes the information meaningful.

To ensure the highest standards of accuracy for our non invasive prenatal screening test patients rely on, we partner with world-class laboratories. Our network of facilities offers access to this advanced screening across Abu Dhabi, Dubai, Sharjah, Ajman, Ras Al Khaimah and Al Ain, ensuring patients across the UAE can benefit from expert care. Our consultants are experts who operate with transparency. NIPT is highly accurate for the conditions it screens for, it does not however, cover all genetic or structural anomalies.

Experienced obstetricians and foetal medicine specialists that are deeply committed to supporting expectant parents lead our teams, who understand the mix of excitement and anxiety that often accompanies pregnancy.

Explaining complex genetic information in a clear, compassionate and reassuring manner are additional skills our doctors possess. They are experts in performing non invasive prenatal diagnosis screening but above that, they are experts in communicating its meaning. Our specialists across the NMC network, across Abu Dhabi, Dubai, Sharjah, Ajman, Ras Al Khaimah and Al Ain, are dedicated to providing patients with the clarity and confidence they deserve during this special time.

FAQs

Find the Answer to Your Medical Questions

Frequently Asked Questions

No, NIPT is a highly accurate non invasive prenatal screening test. It can tell you if your pregnancy has an increased chance of having a chromosomal condition, but it cannot diagnose one with 100% certainty. An invasive test like chorionic villus sampling (CVS) or amniocentesis is required for a definitive diagnosis.
From the time the laboratory receives the blood sample, results from an NIPT screening are typically available within 7 to 10 working days.
No. NIPT is completely non-invasive and carries no risk of miscarriage. Unlike diagnostic procedures such as amniocentesis, this is its primary advantage.
Yes, because the test analyses the sex chromosomes, it can determine the baby's genetic sex with a high degree of accuracy. You can choose whether or not you wish to receive this information.
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