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Doctor insights on: Nuchal Translucency Screening Test Results

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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

Dr. Jan Lei Iwata
1 Doctor shared a insight

Screening (Definition)

Examples are: colonoscopy for colon polyp or cancer; mammograms for breast lesions or cancer; psa a blood test that could indicate enlargement of cancerous prostate tissue; blood sugar or hemoglobin a! c for diabetes. Many think that scanning the whole body will pick up a cancer--in all likelihood, it will not. There also is no good blood test, yet, ...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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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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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 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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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

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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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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?

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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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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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

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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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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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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 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 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 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 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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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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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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Age 21 first pregnancy. Vanishing twin lost at 7 weeks. Nuchal translucency scan this week, so nervous! What are the chances that its high risk?

Age 21 first pregnancy. Vanishing twin lost at 7 weeks. Nuchal translucency scan this week, so nervous! What are the chances that its high risk?

Don't worry: It sounds like you are getting good care. Try not to worry as it is not good for you nor your pregnancy. Just wait and see what the tests show. Try to enjoy your pregnancy, and do what you can to stay healthy. Drink plenty of water, eat a healthy diet containing lots of fresh fruits and vegetables, walk 45 minutes every day, and take Prenatal vitamins containing Folic acid. ...Read more

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13week us says posterior placenta low lying nuchal thickness 1.5mm dr. Advised downsyn screen blood test. Very afraid. May my baby have any disorder?

13week us says posterior placenta low lying nuchal thickness 1.5mm dr. Advised downsyn screen blood test. Very afraid. May my baby have any disorder?

Nuchal thickness: Everyone gets offered the quad test screening for down's, trisomy 18 and spina bifida. Its actually a very good test. An increased nuchal thickness is associated with increase risk of Down's syndrome, but usually other things are seen with it. A cell free DNA test may be a good one to check. ...Read more

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I had my 20wk ultrasound. They told me that she had a mild increase in nuchal fold. Quad screen was negative. Could my baby have down syndrome? Worried

See below: First off, it's very easy and common to make the nuchal fold look big when it really isn't, so that's the good news. Bad news is that if it truly is thickened, it is concerning. A nuchal fold over 6 mm increases the risk of down's by 17 times. So divide your quad screen results by that for true risk. Again, if truly large, would consider an amniocentesis. Could also get a level 2 us to confirm. ...Read more

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What is the accuracy of HIV 1 & HIV 2 antibody screening test's result after 6 weeks from possible exposure? Thank you :)

What is the accuracy of HIV 1 & HIV 2 antibody screening test's result after 6 weeks from possible exposure? Thank you :)

Exposure: If positive the testing is accurate. The natural history of the disease can be that many people will not be positive up to 12 weeks after the exposure and some even 6 months. ...Read more

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My boyfriend recently got an STD screening test at planned parenthood (blood and urine). All results can back negative. Can I trust this?

My boyfriend recently got an STD screening test at planned parenthood (blood and urine). All results can back negative. Can I trust this?

Yes, to the Clinic: Some planned parenthood centers do std testing on men, as well as, women. If you have seen the results, they are as accurate as any clinic at the time of testing. It does not guarantee that he has not picked up something since then.

However, it sounds like you do not trust him, in which case, I would not use the test results to decide about having sex. ...Read more

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How should you decide which colorectal cancer screening test (s) to get and how often to be screened?

How should you decide which colorectal cancer screening test (s) to get and how often to be screened?

Colonoscopy: Average risk people should have colonoscopies every 10 years starting at 50 until 70-75. This may be tempered by medical resources or a persons medical history. ...Read more