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Doctor insights on: What Is The Result Of Ultrasound For Due Date In Polyhydramnios

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I have polyhydramnios, the baby measures three weeks ahead on ultrasound and baby has fluid around its heart. Are any of these related?

I have polyhydramnios, the baby measures three weeks ahead on ultrasound and baby has fluid around its heart. Are any of these related?

Could Be: There is something called nonimmune hydrops fetalis. This can be caused by chromosome disorders, metabolic storage diseases, cardiac abnormalities, anemia, infections, and other fetal problems. Amniocentesis as well as a detailed fetal ultrasound may be suggested. Good luck. ...Read more

Dr. Michael Gabor
2,244 doctors shared insights

Sonogram (Definition)

An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...Read more


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Ultrasound done jan 9 said 15 wks 5 d with due date June 28. Is it possible to have conceived from sex oct 14/15?

Ultrasound done jan 9 said 15 wks 5 d with due date June 28. Is it possible to have conceived from sex oct 14/15?

Online calculator: Use a reverse due date calculator for free online and this will be easy for you to find out. Simply type in your due date and the conception date will be calculated for you. ...Read more

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Is a 8wks ultrasound accurate? It was suppose to be 10wks due date 7/13/15 but after U/S . it was 8 wks..and when did I conceive Due date?? 07/27/2015

Is a 8wks ultrasound accurate? It was suppose to be 10wks due date 7/13/15 but after U/S . it was 8 wks..and when did I conceive Due date?? 07/27/2015

Highly accurate: First trimester US based on CRL is accurate to +/- 2-3 days if done correctly. Your assumed 10 weeks/ EDD 7/13/15 is almost certainly incorrect. Conception is likely around November 3 2014, but this is just a calculated guess. Good wishes. ...Read more

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How accurate is an ultrasound due date estimate?

How accurate is an ultrasound due date estimate?

Best on earlier u/s: Ultrasounds use composite data obtained during the exam to determine an EDD (estimated date of delivery). This date will also have a +/- number of days giving an accuracy range. First trimester ultrasounds are accurate to within about a week, second trimesters estimates are accurate within about 2 weeks, and third trimester scans about 3 weeks. ...Read more

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Having a due date january 15th vaginal ultrasound, there is no way i conveieved in march? Correct

Having a due date january 15th vaginal ultrasound, there is no way i conveieved in march? Correct

Not that simple: It depends on your cycle, relation to the ovulation, fertilisation etc.Pmd will clarify. ...Read more

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What changes a due date by 4 days? Original due date was based on LMP only and then changed to 4 days earlier after 12wk ultrasound. U/s this precise?

What changes a due date by 4 days? Original due date was based on LMP only and then changed to 4 days earlier after 12wk ultrasound. U/s this precise?

Same date : A four day difference is mathematically speaking no difference. You are within the margin of error of a sono machine. A due date simply marks the gestational age if 40 weeks. In this case either date is appropriate. You and your doctor can choose which to go by. Ask your doctor why he or she chose one over the other. ...Read more

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I had sex on Nov. 22, 2014. She went to the DR. And he did an ultrasound and told her the due date was Sep. 16, 2015. What's the possibility it's mine?

I had sex on Nov. 22, 2014. She went to the DR. And he did an ultrasound and told her the due date was Sep. 16, 2015. What's the possibility it's mine?

Chances: If you are your partners only partner then the chances are 100 percent. However, if the odds are lower than that then I would recommend you get paternity DNA testing when the child is born. ...Read more

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What is the due date accuracy w/ 1st trimester ultrasound?

What is the due date accuracy w/ 1st trimester ultrasound?

It depends: It depends on what was measured and when. Very early, the sac diameter is accurate to ±5 to 7 days. Later, a measurement called the 'Crown-Rump-Length' at 7 to 10 weeks of gestation is the accurate to ±3 days. After 10 weeks, the accuracy of the CRL falls slightly with a margin of error of ±5 days at 10 to 14 weeks. ...Read more

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Due date by 13 week ultrasound is june 16th, when did i conceive?

Around Sept. 24th: You probably conceived around september 24th, plus or minus a week. Good luck. ...Read more

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How is a due date derived from an ultrasound that measures fetal age?

How is a due date derived from an ultrasound that measures fetal age?

US: Evidence suggests that, in the first 20 weeks of pregnancy, due dates generated by the first ultrasound may the most accurate tool for predicting your baby's birth by calculating out the 9 month gestation. But ultrasound due dates have a margin of error of roughly 1.2 weeks, so drs will usually keep the original due date (from your last menstrual period date) if the ultrasound due date is close. ...Read more

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My first ultrasound was in my late 2nd trimester. How accurate is due date?

My first ultrasound was in my late 2nd trimester. How accurate is due date?

Depends: On how good the measurements were, how your baby's growth is. In a very average sized baby with good measurements, it's pretty accurate. Was it fairly close to your clinical/lmp date. ...Read more

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If your due date is 3/12/14 according to ultrasound could your conception date be 6/5/13?

If your due date is 3/12/14 according to ultrasound could your conception date be 6/5/13?

When was the sono?: If your first sono was done before 12 wks then we would have expected conception on 6/20. If the sono was just done at 23.5 wks then there could be enough uncertainty around the dating for the 6/5 conception to be possible. ...Read more

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What does it mean if ultrasound, doesn't match lmp, in terms of conception date and due date?

What does it mean if ultrasound, doesn't match lmp, in terms of conception date and due date?

Ultrasound dating: It depends on the timing of ultrasound. First trimester ultrasound is accurate within 5-7 days. 2nd trimester ultrasound has accuracy of +/_ 2 weeks. Lmp dating also assumes a 28 day cycle. There is no test that can date conception more accurately than a 1 week window. Due date is based on lmp unless us off by more than 1 week 1st trimester or 2 weeks in 2nd. ...Read more

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If a baby is measuring 4 days bigger on an ultrasound but the doctor didn't change the due date what does that mean?

If a baby is measuring 4 days bigger on an ultrasound but the doctor didn't change the due date what does that mean?

No need: The measurement error of 1st trimester us is within +/- 4-5 days, so being 4 days different from the calculated date doesn't really mean anything. The calculated date or the us date could be the due date. ...Read more

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5wk 4 day ultrasound vaginally, given the due date january 15th. Is that due date accurate? Given conceiving date 4-19/ 4-25.

5wk 4 day ultrasound vaginally, given the due date january 15th. Is that due date accurate?  Given conceiving date 4-19/ 4-25.

Yes: Those numbers sound fine. Life is not exact, so all numbers are estimates. Those numbers match up fine. Most babies are not born exactly on their due dates. ...Read more

Dr. Lauren Phillips
12 doctors shared insights

Excess Pregnancy Fluid (Definition)

Polyhydramnios is a condition where there is too much amniotic ...Read more