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Doctor insights on: Ultrasound For Nuchal Translucency

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Dr. Kevin Justus
16 Doctors shared insights

Ultrasound For Nuchal Translucency (Overview)

Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information.


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What is the definition or description of: ultrasound for nuchal translucency?

What is the definition or description of: ultrasound for nuchal translucency?

Nuchal Translucency: Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information. ...Read more

Dr. Kevin Justus
16 Doctors shared insights

Ultrasound For Nuchal Translucency (Overview)

Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information.


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Ultrasound at 12 weeks showed nuchal translucency was 4mm. What does this mean?

Ultrasound at 12 weeks showed nuchal translucency was 4mm. What does this mean?

Nuchal Translucency: Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information. ...Read more

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Is it possible that the nuchal translucency (ips) ultrasound be performed at 8-9 weeks?

Is it possible that the nuchal translucency (ips) ultrasound be performed at 8-9 weeks?

Nuchal translucency: The nuchal translucency test is standardized to 11 -13 6/7 weeks. The crown rump measurement of the fetus must be 45 - 84 mm. ...Read more

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I went for IPS 1and I was 13 wks 3 days by LMP. The tech said I am 14 weeks 2 days on ultrasound, so they can't do nuchal translucency. Is it by LMP?

I went for IPS 1and I was 13 wks 3 days by LMP. The tech said I am 14 weeks 2 days on ultrasound, so they can't do nuchal translucency. Is it by LMP?

By sonogram: Nuchal translucency measurements are usually base on sonographic measurements of fetal crown rump length measurements giving a gestational age between 10 to 14 weeks. The cutoff is usually 14 weeks by sono. However, in a high risk population, the measurements remains fairly constant and may be done at any time. ...Read more

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Nuchal translucency screen, how is this used?

Nuchal translucency screen, how is this used?

Nuchal Translucency: Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information. ...Read more

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What is nuchal translucency screening?

What is nuchal translucency screening?

Nuchal Translucency: Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information. ...Read more

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Nuchal translucency screening, what is this?

Nuchal translucency screening, what is this?

Nuchal Translucency: Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information. ...Read more

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What is nuchal translucency?

What is nuchal translucency?

Nuchal Translucency: Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information. ...Read more

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What is nuchal translucency for?

What is nuchal translucency for?

Nuchal Translucency: Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information. ...Read more

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What is a nuchal translucency test?

What is a nuchal translucency test?

Nuchal Translucency: Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information. ...Read more

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Nuchal translucency scan at 4.4mm, what to do?

Nuchal translucency scan at 4.4mm, what to do?

Nuchal Translucency: Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information. ...Read more

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Nuchal translucency was 2mm and crl was 7cm at 13 weeks 1 day. Is this within the normal range?

Nuchal translucency was 2mm and crl was 7cm at 13 weeks 1 day. Is this within the normal range?

Need test results: 1st trimester screening is not done simply by ultrasound. The sonogram is done along with blood work. The results are mathmatically calculated to give you a risk assessment for down syndrome. One should not try to interpret the sonogram without knowing the overall result. ...Read more

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Do I need to get nuchal translucency screening?

Do I need to get nuchal translucency screening?

It is highly recomme: Recommended as it is the standard of care! It will help identify that your fetus has no problems and you will also need a fetal anatomy scan at 20 weeks to make sure everything is ok, I am sure it will be, but if it is not then you have options and your OB can better manage you either way. ...Read more

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Where can I find out about nuchal translucency screening?

You doctor: Your ob/gyn can explain that to you. It is safe and effective, but it is not available everywhere and is not considered the standard of care for pregnancy surveillance. ...Read more

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Just had 28 week scan. Doc is a bit worried about nuchal translucency of 1.05cm. Fl 5.62cm, bpd 7.09cm, ofd 9.08cm, hc 25.8cm, AC 24.32cm?

Just had 28 week scan. Doc is a bit worried about nuchal translucency of 1.05cm. Fl 5.62cm, bpd 7.09cm, ofd 9.08cm, hc 25.8cm, AC 24.32cm?

Average measurements: For 28 weeks in millimeters with one standard deviation in brackets are:
72 (4.0) bpd
95 (5.0) ofd
263 (20) hc
242 (25) ac
54 (4.0) fl
50 (5.0) hl, so all of yours are okay.
Nuchal translucency ; nuchal thickness are usually measured the first ; second trimesters. I thought fetal head ; neck position could alter NT measurement in 3rd trimester, so i'll ask for help on that one. ...Read more

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How do they measure nuchal translucency?

How do they measure nuchal translucency?

Ultrasound: Nuchal translucency (nt) is typically measured between weeks 11 and 14. The sonographer measures the thickness of the tissues of the back of the fetal neck. After the image is magnified, calipers are placed along the inner margin of the tissues of the neck. ...Read more

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Nuchal translucency scan at 4.4mm. What does this mean?

Nuchal translucency scan at 4.4mm. What does this mean?

Nuchal Translucency: Nuchal Translucency is a screening test to determine risk of chromosome abnormalities in a fetus. When the NT is greater than 3.5 mm, there is a 1 in 5 chance of a chromosome abnormality such as Turner or Down syndrome, or Trisomy 18. Additional tests should be ordered by an OB or genetic counselor for confirmation. A mother may decide to continue or end of the pregnancy based on the information. ...Read more

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28 years old, nuchal translucency with blood showed trisomy 18 risk 1:1300. Dr said it's fine, but I'm worried. Does this seem high?

28 years old, nuchal translucency with blood showed trisomy 18 risk 1:1300. Dr said it's fine, but I'm worried. Does this seem high?

Trisomy 18 risk: A result of 1:1300 indicates that in 1300 pregnancies with the exact same test results, only one of them will result in a child with trisomy 18. This is approximately a 0.08% chance of trisomy 18.
This result gives a higher chance than the best risk group (less than 1:10, 000) but still reflects a low likelihood of trisomy 18. ...Read more

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Nuchal translucency measured 2mm and blood work came back very low risk of trisomy 21 and 18 (less than 1/10000). Do I need any other testing done?

Talk to OB: There are various other tests that can be done if you are concerned. These would include amniocentesis. I would talk to your OB for a full discussion of the risks and benefits before trying other tests. ...Read more

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Is 2mm a normal nuchal translucency at 13 weeks pregnant?

Is 2mm a normal nuchal translucency at 13 weeks pregnant?

See below: The short answer is yes, it is within normal. However, it is a bit more complicated than that. The NT is one factor in assessing the risk of having a chromosomal abnormality. If you are 22 years old with an NT of 2 mm, you would get a different risk than a 45 yr old with an NT of 2 mm. There are other factors as well and the data is combined with blood work. ...Read more

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Q> does 0.14cm nuchal translucency in 13 weeks pregnant is normal? Tia

Q> does 0.14cm nuchal translucency in 13 weeks pregnant is normal? Tia

First trimester scre: You must have a NT ultrasound test and that is combined with a blood sample. You cannot take one or the other out of the equation. Please wait for your test results to come back. ...Read more

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Nuchal translucency measured 2mm then the next day at a different dr's office, it was 0.4mm. 13 weeks pregnant. How is that possible?

Ultrasound: I use ultrasound, ; it is easy to have difference of measurements. Example: if you take a picture of your nose from front and same nose slightly from the side, it will look longer when it's the same nose. It is impossible to take two pictures of somewhere in the human body that are identical. There are differences of position etc. This is more so if two different people take the picture. ...Read more

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I am 13 weeks pregnant and went for an nuchal translucency, which came out at 2.2mm in thickness which the doctor said is thicker than normal?

I am 13 weeks pregnant and went for an nuchal translucency, which came out at 2.2mm in thickness which the doctor said is thicker than normal?

Not that simple: Nt scan is one of many screening tests used to assess for risk of a major chromosomal abnormality. There is a range of "normal" that has been established by scanning thousands of pregnancies. As with any screening test, a cutoff is chosen somewhat arbitrarily based on statistics. Most studies use a cutoff of 2.5 or 3.0 for "abnormal." NT is combined with blood tests to determine overall risk. ...Read more

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I'm 11w3d pregnant, I refused to have nuchal translucency test. If baby had down I would keep it anyway. My ob/gyn was so perplexed. Am I wrong?

I'm 11w3d pregnant, I refused to have nuchal translucency test. If baby had down I would keep it anyway. My ob/gyn was so perplexed. Am I wrong?

No: Such testing is really about how much you want to know. Occasionally, the results of such testing can have management implications, usually not. As a rule, I avoid doing testing if I don't know what I'm going to do with the results. Sounds to me like you're one step ahead regarding the non-significance of the results. Good luck. ...Read more

Dr. Michael Gabor
2,275 Doctors shared insights

Sonogram (Definition)

An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...Read more