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A member asked:
Ultrasound dating of pregnancy, how does it work?
A doctor has provided 1 answer
Compare Measurements: Various measurements of the pregnancy are made and are compared to tables of established average normal values to estimate fetal age. Best done in the first trimester when individual differences between fetuses are much less significant. Later in the pregnancy the measurements are much less accurate for age and measure fetal weight.
Answered 10/25/2013
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Related Questions
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What is the error of margin for an ultrasound dating at 11 week 4 day, measuring the fetus crl at 4.8 cm?
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I got a 6 week ultrasound, dating me for delivery 08, 29, 2013 so that would make my conception date in december correct?
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Had first dating ultrasound at 14 weeks. Edd feb 9, could my edd be off, could my due date b feb 25. Seeing if may30 sex did it ?
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I read that a dating ultrasound dates back to the date of conception. I.e. Mine was 7w/50 and done on 4/24. Did I conceive around 3/1?
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