Get Virtual Care
For Businesses
About Us
A member asked:
Which date is likely to be more accurate, the ultrasound date or the lmp date of delivery?
A doctor has provided 1 answer
Neither: Ultrasounds have an accuracy "rate" of plus or minus 10-14 days depending upon when it was taken in the pregnancy. Small for gestational age or IUGR (intrauterine growth retardation) fetus' can also make the ultrasound unreliable. LMP dates are often notoriously inaccurate do to poor dates record keeping. An OB MD uses a combination of signs to better estimate dates of delivery.(EDC)
Answered 5/2/2019
183 views
Thank
Related Questions
A member asked:
I had an ultrasound at 8 weeks 4 days Nov 14th, with a due date of june 22nd. My LMP was September 19th.. which date is accurate ultrasound or LMP?
3 doctors weighed in across 2 answers
A member asked:
I have a question about a dating ultrasound? How accurate are they ? The dating based on my LMP and the date it puts me at are 10 days apart
A doctor has provided 1 answer
A member asked:
The doctors determined my due date from an estimated lmp, it was nov4 . Sept 16, i got an ultrasound that read oct25 which date is accurate?
A doctor has provided 1 answer
A member asked:
Don't need to pinpoint conception day, but two first trim ultrasound give same due date we have no lmp to go off, how accurate is age of our baby?
A doctor has provided 1 answer
People also searched for:
How do you know if your due date is accurate? (ultrasoud, multiple ultrasounds give same date, lmp, etc?)
I don't remember my lmp. My 12w4d ultrasound dated it. How accurate is that date? It's very important.
I have two due dates based on my LMP and and ultrasound. Which one is more accurate?
My due date based on a 7w1d ultrasound is Sep. 2nd but my LMP is Aug. 13th. Which due date is more accurate.
How accurate is an early ultrasound? On 6/15/18 baby measured 5w6d. Between what dates could conception of happened? LMP 5/5.
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
