A 24-year-old female asked:
Are ultrasounds done at 13 weeks pregnant accurate? what is the margin error of dating scans performed at this stage of the pregnancy?
1 doctor answer • 2 doctors weighed in
Dr. Liza Kunzanswered
Maternal-Fetal Medicine 23 years experience
Yes, fairly accurate: The margin of error on a dating scan at 13 weeks is approximately 7 days.
Created for people with ongoing healthcare needs but benefits everyone.
5.2k viewsReviewed >2 years ago
Last updated Apr 5, 2013
People also asked
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $44!
50% off with $19/month membership
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.