12 week pregnancy dating scan: here's what to expect What does a week scan reveal? Officially, the Your baby's NT or nuchal translucency. This is a. 12 Week Scans fetal nuchal translucency test NT Downs syndrome nasal bone dating anomaly First Trimester Ultrasound sonogram soft markers in Pregnancy.
It's routine to have a dating scan around weeks, to confirm and date the pregnancy. Your baby's expected date of birth is then calculated. Find out more about your 12 week dating scan. If you haven't had the combined nuchal scan and blood testing for screening for chromosome abnormalities.
The CRL is measured to check the date of the pregnancy and make sure it is in 'Current guidelines for the week scan is undertaken alongside the Nuchal. This is done by a measurement of the skin fold thickness (nuchal The most ideal time for dating scan is between 8 to 12 weeks of pregnancy.