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A member asked:

Are 11week ultrasounds accurate for dating? margin of error?

3 doctors weighed in across 2 answers
Dr. Dennis Higginbotham answered

Specializes in American Board of Obstetrics and Gynecology

Varies: The range of error for an ultrasound at that point would likely be around +/- 8 days.

Dr Parvez and another doctor agreed

Answered 9/7/2013

4.9k views

Thank

Very: First trimester (ie, <13 weeks) are much more accurate than 2nd or 3rd trimester us'f ro accurate dating. Typically <5 days margin of error.

Answered 9/7/2013

4.9k views

Thank

Related Questions

A member asked:

Had to dating ultrasound before 12 weeks are they accurate to within a couple days?

A doctor has provided 1 answer

A member asked:

I had ultrasound on 01/20/14, with the baby measuring at 4.8 cm, is this accurate for a dating of 11weeks 4 days fetus?

A doctor has provided 1 answer

A member asked:

Ultrasound accuracy? I had an ultrasound that dated me at 13 weeks and 3 days..How accurate would this dating be..Could it be two weeks off?

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A member asked:

I have a question about a dating ultrasound? How accurate are they ? The dating based on my LMP and the date it puts me at are 10 days apart

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A member asked:

I had a 6 week ultrasound and 11 week for dating purposes, they were both high quality and put my conception on or about december 6, how accurate?

6 doctors weighed in across 3 answers

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