Get Virtual Care
For Businesses
About Us
A member asked:
Which is more accurate. an ultrasound at 5 weeks 5 days or 8 weeks 3 days? what would be the margin of error for the one most accurate?
A doctor has provided 1 answer
Both: I'm not sure where you are going. Both dates are very accurate for dating a fetus. The margin of error is about a week
Answered 5/14/2014
4.1k views
Thank
Related Questions
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
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:
Does 1st trimester ultrasound have margin of error up to 7 days because of the equipment/skill of tech or because fetus can grow at dif rates?
A doctor has provided 1 answer
A member asked:
Ultrasound dating accuracy? An ultrasound at 13 weeks and 3 days would have how many days error tops?
A doctor has provided 1 answer
A member asked:
If there is a 1wk margin of error for a 12 wk ultrasound, then would crl measurements of 62 mm be inaccurate? So i may have been 11or13wks, not 12wks?
A doctor has provided 1 answer
People also searched for:
How accurate are first trimester ultrasounds? How accurate are ultrasounds done during the first trimester of pregnancy? I had one done and the doc told me that i'm 8 weeks pregnant, but how off could he be? Is there a week or 2 margin of error?
If LMP and 12 week ultrasound correlate, would the u/s be considered more accurate since the LMP is known? Or is there still 1 week margin of error?
Are 11week ultrasounds accurate for dating? Margin of error?
What is the margin of error for an abdominal ultrasound in the first trimester. Around 11 weeks. Would vaginal be more accurate?
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?
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
