A member asked:

Can an ultrasound be off by 6-7 days fowards or backwards ??

A doctor has provided 1 answer
Dr. Carrie Cannon answered

Specializes in Family Medicine

Yes.: I'm assuming an ultrasound for pregnancy. Average 3 days from dates. Maximum usually 6 days if good date of last menstrual period.

Answered 8/20/2014

3.8k views

Thank

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