Farmingdale, NY
A 30-year-old female asked:
My fetus measure 6.5 cm crl,13 weeks and 158 heart rate.how much the ultrasound can be off ?
1 doctor answer • 2 doctors weighed in

Dr. Asha Kamnanianswered
Obstetrics and Gynecology 45 years experience
5 to 7 days: Ultra sounds in the first trimester is pretty accurate.
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3.9k viewsReviewed >2 years ago
Last updated Jul 9, 2014
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