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Doctor insights on: Boy Ultrasound At 20 Weeks

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What does it mean when an ultrasound at 20 weeks is accurate within 2wks?

What does it mean when an ultrasound at 20 weeks is accurate within  2wks?

18 to 22 weeks: It means it could be off by 2 weeks. It could be 18 weeks or it could be 22 weeks or anywhere in between. It is just a comment on the accuracy of the ultrasound. The ultrasound is usually quite accurate, but it does have a range and the accurate within 2 weeks is just commenting on that. If you combine that with your last period you should be quite accurate. ...Read more

Dr. Michael Gabor
2,239 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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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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I had dating ultrasound at 20 weeks (less accurate) giving me a due date of 9/6/13. Is it possible for father to be someone i had sex with 11/23/12?

I had dating ultrasound at 20 weeks (less accurate) giving me a due date of 9/6/13. Is it possible for father to be someone i had sex with 11/23/12?

I am not sure.: Using: http://calculatorgo.Com/conception-date.Php?Month=9&day=6&year=2013 which is a conception calculator your estimated conception date was 14 december 2012 (between 12 to 17 december 2012). ...Read more

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Im 20 weeks and 2 days and haven't felt my baby move yet and I have my ultrasound in 3 days can there be something wrong? With my first son i felt him instantly at 20 weeks and felt him every day till il had him

Im 20 weeks and 2 days and haven't felt my baby move yet and I have my ultrasound in 3 days can there be something wrong? With my first son i felt him instantly at 20 weeks and felt him every day till il had him

Babies : Babies typically start moving around between 16-24 weeks. If your baby was moving, then it is crucial you let your doctor know if there is a decrease in baby movement activity. It is better to be safe than sorry. Also, going forward, keep a log of baby kicks per day and document them.This is a great way to note any changes in activity. ...Read more

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What does it mean if venous lakes are seen on ultrasound in placenta at 20 weeks?

What does it mean if venous lakes are seen on ultrasound in placenta at 20 weeks?

Usually: doesn't mean anything unless very diffuse. It is a relatively common 2nd trimester incidental finding, generally not associated with adverse outcomes. Talk to your doc about the results. ...Read more

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How accurate is ultrasound done at 20 weeks for gender determination of fetus. Is obstretics ultrasound with same accuracy. Same question for 22 wks?

How accurate is ultrasound done at 20 weeks for gender determination of fetus. Is obstretics ultrasound with same accuracy. Same question for 22 wks?

Depends.: My rule has always been: don't guess! if the fetus is in a poor position for viewing the genitals then no determination can be made. At 20 weeks, if the genital region is visible there is a very high level of accuracy for gender determination. It all depends on the skill of the person doing the scan. ...Read more

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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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How accurate are 1st trimester ultrasounds in estimating gestational age? What about 2nd trimester ultrasounds?

How accurate are 1st trimester ultrasounds in estimating gestational age? What about 2nd trimester ultrasounds?

Accurate!: 1st trimester ultrasounds are very accurate - have correlated with timed ivf pregnancies. We usually consider 1st trimester scans accurate within 5-7days' 2nd trimester scans within 10-14days. ...Read more

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Can the ultrasound be off by 8 weeks in the 2nd trimester?i mean if all ultrasounds match with the dates the preg. can actually be further along?

Can the ultrasound be off by 8 weeks in the 2nd trimester?i mean if all ultrasounds match with the dates the preg. can actually be further along?

One week max: I think 8 weeks off between dates and ultrasound is unlikely. The maximum I've read in studies so far has been 6 days off with accurate dates. Are you sure when your last menstrual period began? ...Read more

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Is it too long to wait 20 weeks for the first ultrasound? I had a past miscarriage 4 months ago.

Is it too long to wait 20 weeks for the first ultrasound? I had a past miscarriage 4 months ago.

Better view: At 20 weeks more anatomy of the developing baby (fetus) can be assessed. It is a good sign that your doctor has decided that your pregnancy is progressing satisfactorily enough to not request an ultrasound until that time. ...Read more

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Can the routine fetal anatomy ultrasound be performed earlier than the standard 18-20 weeks? Is 15-16 weeks way too early to have this done?

Generally : Some people try to push the envelope on this and you can certainly look at that time and rule in an abnormality but it would be harder to rule out an abnormality. Best time is between 19-21 weeks for anatomy. ...Read more

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I tested positive for neural tube defect (I'm 20 weeks). I had my level 2 ultrasound and everything is normal. Should I still be worried?

I tested positive for neural tube defect (I'm 20 weeks). I had my level 2 ultrasound and everything is normal. Should I still be worried?

Yes: Vigilant is a better term. All tests have a certain propensity for false positive and false negative results. While the ultrasound is reassuring, don't let it bring down your guard. Remember to communicate the findings with staff at the hospital/delivery environment as well as to the NICU/well-baby staff as relevant. A focused post-partum physical exam (baby) is important. ...Read more

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At 20 weeks they did a ultrasound and the measurements was ok... Now at 31 weeks my belly is really small.. My baby moves alot.. Why so small?

At 20 weeks they did a ultrasound and the measurements was ok... Now at 31 weeks my belly is really small.. My baby moves alot.. Why so small?

Baby growth?: If you are saying your belly seems small compared to others at 31 weeks, then i would reassure you & say that appearances vary greatly at this point in pregnancy, depending on body shapes & sizes. Do not compare yourself to others. If you are saying that the baby is measuring small on a repeat ultrasound, there are numerous reasons for growth issues & i would suggest discuss this with your doctor. ...Read more

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What does white spot in babies stomach mean during 20 weeks ultrasound.?

What does white spot in babies stomach mean during 20 weeks ultrasound.?

Usually nothing.: Echogenic material in the fetal stomach is sometimes seen in prenatal ultrasound, but is usually of no clinical significance. This may be swallowed vernix caseosa, desquamed epithelial clumps, or metabolic products of subchorionic blood after a hemorrhagic episode. In the latter case, the fetal gastric debris is still not a problem in and of itself, rather a marker of a previously existing problem. ...Read more

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Hi my ultrasound photo (20 weeks) shows an FL/BPD of 67% is this okay? The doctor and ultrasound tech said everything is normal.

Hi my ultrasound photo (20 weeks) shows an FL/BPD of 67% is this okay? The doctor and ultrasound tech said everything is normal.

Should be ok: There are different charts which show normals for different weeks of gestation. It is also important to look at all of the ratios and measurements to determine if there are any indicators of a problem. If the the doctor and US tech are saying that your ratios are normal, I would believe them. Otherwise, go and have a second opinion to ease your mind. ...Read more

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At my 20 weeks ultrasound my dr told my everything is great legs arms spine, fingers, toes, head but there is fluid around heart should I b worried?

At my 20 weeks ultrasound my dr told my everything is great legs arms spine, fingers, toes, head but there is  fluid around heart should I b worried?

Yes: A pericardial effusion is not normal in fetuses at any stage of gestation. What it means is not clear based on the information you supplied. You need the study repeated by a neonatologist. ...Read more

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How much does an ultrasound test for a woman in 2nd trimester normally involve?

How much does an ultrasound test for a woman in 2nd trimester normally involve?

Whaa??: Are you asking how much one costs (variable, depending on insurance, etc...) or what it covers (pretty comprehensive for fetal anatomy--fetal heart, brain, spine, etc, )? Sorry about answering a question with a question, but more specifics are needed. ...Read more