A member asked:

Had u/s at 14w doc said bby measured at 14w also. i asked about bby measured at 12 weeks she said no waybby measured in 14w range. how accurate is it?

A doctor has provided 1 answer
Dr. Lori Semel answered

Specializes in Pediatrics

Accuracy of u/s: Utrasound examinations that are done from 12 to 22 weeks are within 10 days of accuracy (or up to 10 days earlier or 10 days later than the woman's calculated due date).

Answered 8/7/2014

3.8k views

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