Domestic Dogs
Ultrasounds
Dog Care

When is the best age to have an ultrasound to find edd when lmp is unknown?

User Avatar
Wiki User
2006-09-07 06:55:17

The earlier and ultrsound is performed the more accurate it is.

Usually around 7 weeks. But any time in the first 20 weeks is

accurate to within 5 days. After this babies weights start to vary

too much the estimate to be as accurate.


Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.