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A 22-year-old female asked:

Can a first trimester ultrasound gestational age/edd be wrong by 7 weeks?

1 doctor answer • 2 doctors weighed in

Dr. Parul Krishnamurthyanswered

Obstetrics & Gynecology 36 years experience

No: First trimester ultrasounds are the most accurate for estimating gestational age within +/- 7 days.

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Dr. Ronald Holzman

Dr. Ronald Holzman agrees1 doctor agrees

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Last updated Dec 28, 2012

Found in:

Pregnant health›Sonogram

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