How accurate is a dating scan

Published: 06.01.2018

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For most mums-to-be, the first scan will be a dating scan at between 10 weeks and 13 weeks plus six days of pregnancy (NICE 2008). This is sometimes known as the 12 week scan. However, the timing of your first scan will also depend on how your pregnancy is going, and where you live.

You may need to have a full bladder for this scan, as this makes the ultrasound image clearer. Transvaginal ultrasound estimate of the most head to must be exact precise. LRRS , Jul 30, Some abnormalities may also be detected at this scan, such as neural tube defects spina bifida is a type of neural tube defect.

How accurate is ultrasound in dating a pregnancy?-Dr. Nupur Sood

I stole the money back The NICHD fetal growth studies: Anyone had any experience with dating scans and dates being accurate or not? As others have said, there can be huge variation! Sign up for Your Health, the monthly e-newsletter packed with the latest news and topical tips from NHS Choices.

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