Get Virtual Care
For Businesses
About Us
A member asked:
Are abdominal ultrasounds as accurate for dating as vaginal around 11 weeks of pregnancy? what is the margin of error for abdominal at this gestation?
4 doctors weighed in across 2 answers
Depends: If a woman is thin and the doctor has a good image of the fetus, then abdominal can be just as accurate as vaginal. Margin of error at this gestation is still +/- 5 days. After 14 weeks that number increases to +/- 10 days.
Answered 10/24/2013
4.8k views
Thank
Yes, if...: An abdominal ultrasound at 11 weeks is just as accurate for dating as vaginal (+\- 1 wk) if the image quality is good. You can see early fetal anatomy much better vaginally though.
Answered 8/21/2017
4.8k views
Thank
Related Questions
A member asked:
How accurate are ultrasounds for dating pregnancy what's the margin of error. If my due date is oct 31, what are the dates i could have gotten pregnant?
A doctor has provided 1 answer
A member asked:
Are ultrasounds done at 13 weeks pregnant accurate? What is the margin error of dating scans performed at this stage of the pregnancy?
A doctor has provided 1 answer
A member asked:
Why is it better to wait until 8 week gestation versus seven weeks gestation in order to have an accurate dating ultrasound?
A doctor has provided 1 answer
People also searched for:
Can a 7-8 week vaginal ultrasound be a month off with dating the gestational age/due date?
I have had a few positive urine pregnancy tests but negative blood tests (multiple). Ultrasounds are also normal. They couldn't find a sac. I have a very swollen lower abdomen. Could it be a pregnancy that has gone undetected? What should I do?
I had mid cycle spotting rite after sex,mild back,neck,shoulder nd lower abdominal pains,now i found watery fluid out of vagina,is it a pregnancy sign?
Abdominal ultra sound scan done at 4 weeks of then unknown pregnancy. Does it affect the baby?
Can sperm from precum swim across buttocks or lower abdomen area into vagina and cause pregnancy?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
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.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
