Doctor insights on:
Cephalopelvic Disproportion Ultrasound For Due Date
The sonogram is a test that looks at body organs with no radiation. It uses sound waves and can give us a 2 dimensional view of organs such as the kidney, liver, heart, and lungs. It can define spaces that are either solid or full of fluid. I can also guide large needles into an organ or near the spine, and can help define the area being cut open. Its a ...Read more
Head is too large...: The easiest way to visualize this is that the head is too large to pass through the birth canal. Cephalo means head and pelvic is the birth canal. ...Read more
How accurate are my 7 and 9 week ultrasounds if i got the same due date both times and could it be off 12 days ?
Accurate: The accuracy of a 7 and 9 week ultrasound is within about 3-5 days. ...Read more
Had 2 ultrasounds,1st at 10w2d & 2nd at 13w3d. Both returned same due date (2nd US dated me a day earlier). Can both have dated me 10 or 12 days late?
I had 3 ultrasounds a day in btwn them. One gave 7/11/14, the second a due date of 7/08/14 and the other gave 7/14/14. Which is correct? ?
?? please ask your: Ob do not know why you would have 3 us in a row with one day in between them? It is the job of your OB to decide which one to use, your OB should have given u a set due date already if u had 3 ultrasounds. ...Read more
Depends on dates: The ultrasound (us) is the most accurate way we have of deciding how pregnant you are. There is a variation in us accuracy due to how we measure and who is measuring, but the accuracy is about 3-4 days before or after the measured size until about 10 weeks, plus or minus a week to about 14-15 weeks, then gradually changing up to a 3 week range in the last 2 months of pregnancy. ...Read more
How do you know if your due date is accurate? (ultrasoud, multiple ultrasounds give same date, lmp, etc?)
Pregnancy dating: The best dating is an accurate last menstrual period date confirmed by an early ultrasound. But not many women have that. Second best is an early ultrasound dating. Remember a term pregnancy is 40 wks +/- 3 weeks. Your due date doesn't mean you will deliver on that date. It's just a means of knowing how pregnant you are. ...Read moreSee 1 more doctor answer
I know it's not a big difference, but what would change a due date from june 3 to may 31? (based on 12 week ultrasound).
Different size is OK: An ultrasound measurement and fetal age calculations are based on averaging many pregnant women and following them until birth of the baby.There are many factors that could alter the growth of the fetus, and babies come in all sizes, so the dates during early pregnancy are reported as a certain date plus or minus 5 days , 10 days, etc. The earlier the ultrasound, the more accurate the dating. ...Read moreSee 1 more doctor answer
Ik its 2014, and my due date was feb 9,2013. On august 14 2012 i got an ultrasound an measured 14w3d. How many days off can a ultrasound b this early.
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