Nuchal translucency is the name for the normal fluid space behind the neck of a foetus unborn baby that can be seen on ultrasound scans. A nuchal translucency scan also called first trimester of pregnancy screening is carried out during weeks 11—13 of a pregnancy. The scan uses ultrasound to screen for Down syndrome, or other chromosomal or inherited conditions in the foetus. Other non-chromosomal conditions, such as neural tube defects, abdominal wall defects, limb abnormalities and some congenital heart disease, can also be detected at this stage of the pregnancy. Screening can determine the likelihood of risk of an abnormality, but does not diagnose the condition. If screening does identify a possible risk, it does not necessarily mean there is an abnormality present, but does mean that further testing is necessary. Women who return a high-risk result from the screening will be offered formal genetic testing using other procedures, such as amniocentesis or chorion villus sampling CVS. All women are offered a nuchal translucency test regardless of their age, and 19 out of 20 women have a normal screening result. Any patient might be referred for a nuchal translucency test regardless of their age.
The nuchal translucency NT refers to the pocket of fluid at the back of the fetal neck. The measurement of the nuchal translucency is part of the combined screening test for trisomy 21 and trisomy 18, called enhanced First Trimester Screen eFTS. An increased NT measurement increases the chance for other chromosome differences, additional genetic conditions, and can also be helpful to predict structural differences that might be more obvious later in pregnancy such as a heart defect.
At the time of the NT ultrasound, the sonographer or physician who does the scan can also accurately predict your due date, determine how many babies you are carrying and examine the early basic structural development of the fetus.
The nuchal scan. As part of your first scan at around 12 weeks, you may choose to have the Nuchal Transluceny (NT) scan which is part of the.
We welcome your views on our website and invite you to take part in a brief survey when you’ve finished your visit. A nuchal translucency scan NT is an ultrasound scan that helps determine the likelihood of Down’s syndrome and other chromosomal abnormalities in unborn babies. It is a non-invasive procedure so doesn’t carry a risk of miscarriage.
The chance of having a baby with the condition is one in 1, for women who are 20 years old, rising to one in for women who are 30 years old, and one in for women who are It doesn’t carry a risk of miscarriage as it’s non-invasive, but it doesn’t give a definitive answer. The scan will provide you with additional information on multiple pregnancies and it accurately dates your pregnancy.
It can also exclude major abnormalities at that stage of the pregnancy. These substances have passed from the baby to the mother. This combined test allows the screening process to be more accurate and is recommended by the National Screening Committee and the Fetal Medicine Foundation. A fixed price for this treatment may be available on enquiry and following an initial consultation. Spire Healthcare can provide you with a single, fixed price so there are no surprises.
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Nuchal translucency (NT) scan
Learn more. Ultrasounds use sound waves to create an image picture of your baby. They are used to look at your developing baby. An ultrasound is considered safe for both mother and baby because it does not use ionising radiation it is different to an x-ray. Your doctor or midwife will advise you when an ultrasound may be recommended. The following ultrasounds are common in pregnancy:.
A dating scan will be done so you know what your new due date (Estimated The ultrasound measurement of the nuchal thickness. 3. The blood test results.
Normal babies accumulate fluid under the skin behind the head and neck between 9 and 14 weeks of pregnancy, however, excess fluid has been associated with chromosome abnormalities such as Down syndrome. The Nuchal Translucency NT tends to be larger in a baby that might be affected by a chromosome abnormality and it can be compared with what is expected for a baby of the same size NT Normal Range. The assessment of these elements age, blood, scan combined give us a comprehensive understanding of the likelihood of your baby being affected by a chromosome abnormality.
The levels can be assessed from a simple blood test taken from you either before or on the same day as the Nuchal Translucency ultrasound is performed. The results can be compared to the expected results in a pregnancy at the same gestational age. We recommend having your 12 — 14 week scan at the same time, there are many benefits to this scan including:. If your results indicate that you have an increased risk of a baby with a chromosome abnormality, you will be offered further prenatal testing.
Remember, any woman who falls pregnant can have a child with a chromosome problem, but the risk increases with age. For more information on Nuchal Translucency NT , as well as our comprehensive assessment NT — plus, please get in touch with us. You will need a copy of your referral to complete a booking. Due to the time required for some appointments, not all appointments can be booked online, for more information, please read our booking guideline. Obstetric Ultrasound. Week Nuchal translucency is the name for the fluid behind the neck of your baby.
The four most common stages to have an ultrasound
Now comes the moment when you might get to see your baby for the first time — the week scan. We run through what scans are and what to expect on the day. This is often just called a scan.
We recommend having your 12 – 14 week scan at the same time, there are many benefits to this scan including: Accurate dating of your pregnancy; Diagnosis of.
We will also look at the placenta, amniotic fluid and umbilical cord. Pregnant women are offered two routine ultrasound scans during pregnancy, this is called the Fetal Anomaly Screening Programme. The other routine pregnancy scan offered by the NHS is around 20 weeks of pregnancy called the Anomaly scan. Parents to be will be given an individual chance of baby having a chromosomal condition present.
This is calculated by inputting certain maternal and fetal factors including They will be able to talk to you if you have additional questions, concerns or if you receive a high probability Nuchal Translucency Scan result. This scan is best performed by our Specialist Fetal Medicine Foundation accredited sonographers. Further Consultant advice available.
Unless there are concerns about the pregnancy it is better to wait to have this scan after 7 weeks as the images are clearer for you to see and better for us to measure. If you come before 7 weeks the baby will be less than 1cm in size and so the scan sometimes has to be performed transvaginally placing the probe inside the vagina to enable us to see the baby well enough to measure and to see the heartbeat.
We ask that you come with a full bladder for this scan as it usually allows us to get the best possible picture of the baby.
Aims of the nuchal scan. To date the pregnancy accurately. This is particularly relevant for women who cannot recall the date of their last period, have an.
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12-14 Week Scan
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Community groups. Home Pregnancy Prenatal health Prenatal ultrasound scans. In this article What is a nuchal translucency scan? Why might I have a nuchal scan?
The nuchal translucency measurement can be taken during the dating scan. Find out more about the combined screening test for Down’s syndrome. You won’t be.
The browser you are using is too old for our website. Please visit www. Scans during pregnancy can make some mums-to-be a little nervy, which is perfectly natural. Most of the time scans are there to simply help confirm your little one is developing healthily – with the added bonus that you get to see your baby moving around. But sometimes they can reveal a few more serious issues.
In the UK you will be offered at least two, the first at 8 to 14 weeks and the second at 18 to 21 weeks. If you do have any more questions, however, then speak to your midwife or contact our team of friendly experts. A gel is applied to your tummy – it may feel a little cool – and then a small hand-held device is moved over your skin, which sends an image of your little one to a screen.
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Menu Close menu. Back to Your pregnancy and baby guide. All pregnant women in England are offered an ultrasound scan at around 8 to 14 weeks of pregnancy.
A nuchal translucency scan (NT scan) is an ultrasound screening test to assess To date your pregnancy accurately, the sonographer will measure your baby.
There are a number of tests and scans available to you during your pregnancy. The nuchal translucency scan is an ultrasound that may detect the risk of a number of chromosomal abnormalities. A nuchal translucency scan is part of the ultrasound scan that most pregnant women have at around 12 weeks of pregnancy. The results of a nuchal translucency scan may tell you if your baby has a high or low risk of a chromosomal abnormality.
Examples of chromosomal abnormalities include trisomy 21 Down syndrome , trisomy 18 Edwards syndrome or trisomy 13 Patau syndrome. The results will tell you if your baby is at high risk or low risk of chromosomal abnormality in comparison to the general population. The nuchal translucency scan is done between 11 and 14 weeks of pregnancy. Usually the scan is done through your abdomen but occasionally the nuchal translucency can only be seen by inserting a probe into the vagina.
You might also be offered a blood test around this time. Your doctor can look at the results of the combined test blood test and nuchal translucency scan to get a more accurate picture of the risk of a chromosomal abnormality. The results of the nuchal translucency scan will not be used alone to calculate the risk of a chromosomal abnormality.