A 36-year-old female asked:
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My fetus measure 6.5 CM CRL,13 weeks and 158 heart rate.How much the ultrasound can be off ?

1 doctor answer
Dr. Asha Kamnani
42 years experience in Obstetrics and Gynecology
5 to 7 days: Ultra sounds in the first trimester is pretty accurate.
Answered on Jul 9, 2014
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