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It is important for the measurement to be done properly to ensure an accurate result.
If your baby is not co-operating and the NT cannot be measured accurately, we may ask you to return for more images later in the day.
For example, this test will not tell us "no, the baby definitely does not have trisomy 13, 18 or 21" and, this test will not tell us “yes, your baby definitely has trisomy 13, 18 or 21”.
To get a definitive 100% answer for chromosome abnormalities including Down syndrome, a prenatal diagnostic test is needed (chorionic villus sampling or amniocentesis).
This testing combines the nuchal translucency ultrasound with specific blood tests.
Your sonographer will be experienced at performing these ultrasounds during pregnancy. It involves scanning with the ultrasound probe lying in the vagina.
The transvaginal ultrasound probe is thin, about 2cm diameter.
Performing the transvaginal ultrasound usually causes less discomfort than a pap smear. Your privacy will always be respected during your ultrasound, especially the transvaginal examination.
You will have a large towel covering your lower body, in addition to wearing a gown during the transvaginal ultrasound.
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The probe is covered with a disposable protective sheath.