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Doctor insights on: Ultrasound Estimate Of Fetal Weight More Than 9 Pounds

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Ultrasound Estimate Of Fetal Weight More Than 9 Pounds (Overview)

A scan showing "more than 9 pounds" usually means the baby is above the normal size for a baby at or near its due date, and may have some difficulty being delivered.


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When you subtract 2 weeks from the ga provided by an ultrasound, does that give you the estimated fertilisation age or the estimated fetal age?

When you subtract 2 weeks from the ga provided by an ultrasound, does that give you the estimated fertilisation age or the estimated fetal age?

Yes: When estimating gestational age by using an ultrasound scan, 2 weeks are added to the fetal age (the fetal age is the fertilisation age). ...Read more

Ultrasound Estimate Of Fetal Weight More Than 9 Pounds (Overview)

A scan showing "more than 9 pounds" usually means the baby is above the normal size for a baby at or near its due date, and may have some difficulty being delivered.


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Is an efw via ultrasound of 3lb 9-10oz large for a 30w3d fetus? How accurate is this weight? Edd was confirmed by multiple early ultrasounds.

Is an efw via ultrasound of 3lb 9-10oz large for a 30w3d fetus? How accurate is this weight? Edd was confirmed by multiple early ultrasounds.

On track: That weight is on track for that age. For the 3rd trimester, your baby is fully formed and now just gaining weight and developing lung strength, etc. Baby will gain about 1/4 to 1/2 pound a week from here on. ...Read more

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Can you tell me how precise are ultrasounds about fetal weight?

Can you tell me how precise are ultrasounds about fetal weight?

See below.: They are pretty accurate. Any variations will be due to operator dependence, how accurately measurements were taken and position of the fetus. Measurement/weight charts were developed over many years, by several different studies, all showing some degree of difference. Although not 100% dead on, ultrasound determination of weight should be considered as the most accurate guesstimate. ...Read more

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When you subtract 2 weeks from the ga provided by an ultrasound, does that give you the estimated fertilisation age or the estimated fetal age?

Yes: When estimating gestational age by using an ultrasound scan, 2 weeks are added to the fetal age (the fetal age is the fertilisation age). ...Read more

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I had my ultrasound today and my ob said the fetus is too small to measure. Now I'm worried that the fetus has no heart beat. I'm estimated 5/6 weeks?

I had my ultrasound today and my ob said the fetus is too small to measure. Now I'm worried that the fetus has no heart beat. I'm estimated 5/6 weeks?

Too early: It is too early to worry. A fetus can not usually be seen until at least 6 weeks. Most likely the doctor scheduled you to return next week for a repeat sonogram. At that time you should be able to see and determine if all is well. ...Read more

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Can 13 week fetus be mistaken in ultrasound as a 9 week fetus?

NO not in my office: Either your dates are off or there is something wrong with the pregnancy, at 13 weeks the margin of error is 5-6 days at the most either way. ...Read more

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Does zooming in on an ultrasound affect the due date given? And can a 7 week fetus be mistaken door a 9 week fetus?

Does zooming in on an ultrasound affect the due date given? And can a 7 week fetus be mistaken door a 9 week fetus?

No: Zooming in does not affect measurements, the machine accounts for the zooming in. Ultrasound dates based on measurement. It is the most accurate way to date a pregnancy if done in first trimester. ...Read more

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9 week ultrasound showed 2 sacs with fetus A 2.7 CRL with HB and fetus B 1.5 CRL with no HB at 7 weeks 2 days, what r chances of VTS and chimera?

VTS: At this early gestation, the embryo without a heartbeat will gradually go away. Since there are 2 sacs, there is little risk to the healthy fetus. ...Read more

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What is more accurate for fetus age-lmp or ultrasound? Had u/s at what I thought was 13w but u/s said 11w3days. Do I book another at my 20w or theirs

What is more accurate for fetus age-lmp or ultrasound? Had u/s at what I thought was 13w but u/s said 11w3days. Do I book another at my 20w or theirs

8-13 week US better: Base your followup us on the current us results. Ob us is most accurate between 8 and 13 weeks, measuring crown rump length of the fetus, and when there is a difference between LMP and this us, the us is usually correct, if performed well.

The fetal anatomy screening us should be between 18 and 22 weeks, so hedge your bets and schedule between 19 and 20 weeks based on the first us. ...Read more

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Can a 9 week fetus possibly grow slow and measure at time of ultrasound at 7 weeks? And be normal?

Can a 9 week fetus possibly grow slow and measure at time of ultrasound at 7 weeks? And be normal?

Yes: Yes, usually dating can be a bit off. Important to continue following to demonstrate continued growth along the normal curve with continued normal cardiac activity. Good luck! ...Read more

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When I had my transvginal ultrasound at 6 weeks the fetus had heartbeat but at 9 weeks the heartbeat was gone. What could be the cause?

When I had my transvginal ultrasound at 6 weeks the fetus had heartbeat but at 9 weeks the heartbeat was gone. What could be the cause?

Genetic abnormality: You had an early fetal demise. This is fairly common and most often its a chromosomal (gene) abnormality during early development that is responsible. ...Read more

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In what age we can distinguish sex of the fetus in ultrasound?

In what age we can distinguish sex of the fetus in ultrasound?

13 Weeks: Although occasionally the sex of the fetus can be discerned by week 11, ultrasounds done after the 13th week are 95-100% accurate in identifying the sex of the fetus... That is, assuming there is no malformation of the genitals. Good luck! ...Read more

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Does ultrasounds give fetal age or gestionation age?

Does ultrasounds give fetal age or gestionation age?

Gestational age: Ultrasounds factor in the manner in which we 'date' pregnancies and they are basing analysis of your baby's growth against all babies of the same age. Hope that helps! ...Read more

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My ultrasound report says no gross abnormalities found in fetus. What does that mean?

My ultrasound report says no gross abnormalities found in fetus. What does that mean?

Unremarkable scan.: This is typical verbage for an unremarkable prenatal ultrasound. That means that the examination did not identify major fetal anomalies such as gastroschisis, omphalocele, anencephaly, spina bifida, diaphragmatic hernia, major heart/kidney/lung/skeletal defects. Congratulations - however keep in mind that even in experienced centers the detection rate of anomalies may not surpass 60-80%. ...Read more

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Do ultrasounds measure fetal or gestational age? And how accurate are they at 7 weeks 5 days?

Yes. "Accurate".: Ultrasound pregnancy dating scans measure fetal size or age (time since conception), and convert the measurements to human gestational age. Gestational age is calculated by adding 2 weeks to the age of the fetus (to the time since conception), and roughly represents the total weeks since the first day of the last menstrual period (LMP). All dates are ESTIMATES, so 7w 5d means about 7w to 8w 3d. ...Read more

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I am 5 months preggy and just had my ultrasound. It showed a male fetus. Can it be possibly a female?

I am 5 months preggy and just had my ultrasound. It showed a male fetus. Can it be possibly a female?

Depends: If there was clear evidence of male genitalia then it's a male. Sometimes it looks like one type of genders anatomy but the sonographer is not sure. So in these cases they might be wrong. ...Read more

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Can a fetus that shows at the ultrasound 8 weeks can actually be 14 weeks and the ultrasound to show more?

Don't completely: Understand the question, but a normal 14 week fetus could never be mistaken for an 8 week gestation. ...Read more

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GA is 8 weeks 4days when ultrasound was done. Ultrasound shows GA as 7 weeks 6 days. Fetus is 1.47cm. FHR 158bpm. Is this normal range? I'm 40.

GA is 8 weeks 4days when ultrasound was done. Ultrasound shows GA as 7 weeks 6 days. Fetus is 1.47cm. FHR 158bpm. Is this normal range? I'm 40.

Within normal range: At this point in pregnancy, a 4 to 5 day difference between the dating of your pregnancy by your last normal menstrual period and the dating by sonographic findings is usually within acceptable limits and subject to confirmation by another ultrasound 4 to 5 wks later. The 1.47 cm measurement of embryo can be considered" fairly reliable and accurate" if obtained by a skilled, certified sonographer ...Read more

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Doppler ultrasound safe for fetus?

Doppler ultrasound safe for fetus?

Doppler ultrasound: A doppler ultrasound is used to measure flow. It uses sound waves and doesn't hurt the fetus at all. ...Read more

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When are you able to see a fetal heartbeat on an ultrasound?

Varies: On transvaginal ultrasound fetal heart activity can be seen as early as 5.5 weeks but more typically after 6 weeks and always after 7 weeks in live pregnancies. In very early fetuses, on trans-abdominal sono early fetal heart visualization is complicated by uterus position, large patient size, and bladder filling. ...Read more

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What is the definition or description of: fetal ultrasound?

What is the definition or description of: fetal ultrasound?

Safe fetal imaging.: Fetal ultrasound is an amazing and safe imaging method employing the piezoelectric properties of quartz crystals to convert electrical current to mechanical vibrations; this creates ultra-high frequency sound waves that can penetrate inside the pregnant woman's body and bounce off different structures with variable characteristics. A computer then processes the feedback signal to image the fetus! ...Read more

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32 week ultrasound shows fetus' bilateral ventricles are 9.5 mm. Doc wants me back after 2 weeks for another. Can this be a bad problem?

32 week ultrasound shows fetus' bilateral ventricles are 9.5 mm. Doc wants me back after 2 weeks for another. Can this be a bad problem?

Hc monitoring: I assume it is ventriculer index you are talking about
at 32 weeks midline zone is9-10 mm
I am sure your physician has been monitering the ventrical size in your baby
if it is less or more than the 2 standered deviation of your babies prior ventriculer size it needs to be closely monitered ...Read more

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What all can fetal ultrasound at 20 weeks tell you?

What all can fetal ultrasound at 20 weeks tell you?

A lot of details.: Fetal gender, anatomy in detail (including brain, heart, spine, kidneys, extremities), amniotic fluid volume, due date estimation within 10 days of actual date, cervical and uterine anomaly detection, placental location and pathology. It is a very cost-effective test for any pregnancy and should be universally performed. ...Read more

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What exactly does an ultrasound of the fetal heart consist of?

What exactly does an ultrasound of the fetal heart consist of?

Most detailed exam: Maternal-fetal medicine or OB doctors. Sonographers spend long time looking at the heart to ensure that there are 4 chambers, an intact septum between the chambers, normal anatomy of the big vessels of the heart, a regular and normal heart rate, etc. They will also look for abnormalities that can be associated with chromosomal or other problems. Details they see change with fetal age and position. ...Read more

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Since tof is congenital, why doesn't fetal ultrasound always find it?

Heart defects: Tetralogy of fallot, a heart defect, can be difficult to diagnose prenatally. The heart is very small in a developing baby, and specific images must be obtained to make that diagnosis. If the baby is in a bad position, or the mother is obese, or the doctor doesn't have a lot of experience diagnosing heart defects in a fetus, tof can be missed. ...Read more

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Could an abdominal ultrasound at 8 weeks be mistaken for a 12 week fetus?

Could an abdominal ultrasound at 8 weeks be mistaken for a 12 week fetus?

No: Any quality ultrasound in the first trimester should be accurate +\- 1 week. ...Read more

Dr. Michael Gabor
2,275 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