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Error: Not a valid value. There are a of tests and scans available to you during your pregnancy. The nuchal translucency scan is an ultrasound that may detect the risk of a of chromosomal abnormalities. A nuchal translucency scan is part of the ultrasound scan that most pregnant women have at around 12 weeks of pregnancy. If you decide to have the scan, the health professional performing the ultrasound will measure your baby's nuchal translucency a fluid-filled space at the back of your baby's neck. The 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 syndrometrisomy 18 Edwards syndrome or trisomy 13 Patau syndrome. Increased thickness of the nuchal translucency might indicate a chromosomal abnormality, but it doesn't tell you that your baby definitely has, or doesn't have, an abnormality. The 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 of the combined test blood test and nuchal translucency scan to get a more accurate picture of the risk of a chromosomal abnormality. The of the nuchal translucency scan will not be used alone to calculate the risk of a chromosomal abnormality. All your first trimester screening is combined to calculate your risk. If you have a risk of 1 in or greater e.
You may be referred to a genetic counsellor. They will discuss your options and help you to decide if you would like to have a more invasive diagnostic test, such as chorionic villus sampling CVS or amniocentesis. These diagnostic tests can tell you definitively if your baby has a chromosomal abnormality or not.
Tests such as CVS and amniocentesis carry a small risk of miscarriage. You might choose to have a nuchal translucency scan or you may choose to go straight to one of the more invasive diagnostic tests instead to get a definitive answer.
You can have chorionic villus sampling from 11 weeks of pregnancy, or you can have an amniocentesis from 15 weeks of pregnancy.
Week 15 of pregnancy (days )
It's important to be well informed and discuss the different options available to you with your doctor or midwife. You can also call Pregnancy, Birth and Baby on to talk about these tests and what the could mean for you and your pregnancy. Learn more here about the development and quality assurance of healthdirect content.
InsideRadiology provides free and easily accessible, accurate, up to date and credible information about medical imaging tests and procedures. on InsideRadiology website. Most women will have at least one ultrasound scan during their pregnancy. It usually takes place between 18 weeks and 21 weeks. Think about the prenatal screening tests you might have, and whether you want a dating scan to confirm your due date. In the second trimester of pregnancy, you may be offered to have an morphology scan anomaly scan.
Nuchal translucency scan
Learn about what it looks for and when it is performed. A dating scan is an ultrasound scan to determine how many weeks pregnant you are and your due date.
Learn more about how the procedure is performed. A vaginal ultrasound also called an internal, pelvic or transvaginal ultrasound lets a medical professional observe a fetus and check reproductive health. Handy infographic that shows what you can expect at each antenatal appointment during your pregnancy. Questions to ask your doctor about the tests and scans you will be offered during your pregnancy. Down syndrome is a chromosomal disorder affecting 1 in 1, babies. Screening tests for Down syndrome are routinely offered to pregnant women. Pregnancy, Birth and Baby is not responsible for the content and advertising on the external website you are now entering.
Video call. This information is for your general information and use only and is not intended to be used as medical advice and should not be used to diagnose, treat, cure or prevent any medical condition, nor should it be used for therapeutic purposes. The information is not a substitute for independent professional advice and should not be used as an alternative to professional health care. If you have a particular medical problem, please consult a healthcare professional.
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Week 15 of pregnancy (days )
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A message has been sent to your recipient's address with a link to the content web. Your name: is required Error: This is required. Your : is required Error: This is required Error: Not a valid value. Send to: is required Error: This is required Error: Not a valid value. What is a nuchal translucency scan? What does a nuchal translucency scan look for?
How is a nuchal translucency scan performed and when? What happens if my baby is in the high risk category?
Do I have to have the test? No, it is your decision. Or you might decide not to have the nuchal translucency scan, or any other tests. Back To Top. Nuchal Translucency Scan - InsideRadiology InsideRadiology provides free and easily accessible, accurate, up to date and credible information about medical imaging tests and procedures. Call us and speak to a Maternal Child Health Nurse for personal advice and guidance.
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