Log in Sign up. Community groups. Home Pregnancy Health Antenatal scans. In this article What is nuchal translucency? Why might I have a nuchal scan?


Screening in pregnancy: dating scan




Fetal growth assessment - decision support
Log in Sign up. Home Pregnancy Health Antenatal scans. In this article When will I have my dating scan? How accurate are dating scans? What else will the dating scan reveal? What happens at a dating scan?



Prenatal Screening and Diagnosis of Down's Syndrome
The main purpose of a dating scan is to check the stage of pregnancy and therefore when the baby is due. Measuring the baby can be more accurate than dating by the last menstrual period. It is also an opportunity to check the baby is alive and developing as expected, and check for twins. This scan may also be part of your screening test for Down's syndrome nuchal translucency scan. Occasionally, if the baby is in an awkward position, an internal scan may be carried out, using a vaginal probe.





There are two different types of tests that can be done to look for Down's syndrome during pregnancy - a screening test and a diagnostic test. Down's syndrome is a genetic chromosome problem that some people are born with. A person with Down's syndrome can usually be recognised by their typical features. It can also cause learning disability and there are certain medical problems that someone with Down's syndrome has an increased risk of developing.

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