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Doctor insights on: Fetus

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When is a fetus considered a human life under u.S. Law?

When is a fetus considered a human life under u.S. Law?

Fetus: When a fetus has reached 24 weeks estimated gestational age it is considered to be a viable fetus and therefore afforded all medical efforts to maintain life if born. Prior to this gestational age the fetus is considered to be nonviable. ...Read more

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Does a 14w u/s scan of the fetus look noticeably different than a 10w u/s scan?

Does a 14w u/s scan of the fetus look noticeably different than a 10w u/s scan?

Yes: With the additional growth to 14 weeks, the fetal features such as head and limbs are more defined. ...Read more

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Isn't a 12 wk u/s accurate within 5-7 days? Don't the fetus measurements vary slightly and would show a difference of 11 days?

Isn't a 12 wk u/s accurate within 5-7 days?  Don't  the fetus measurements vary slightly and would show a difference of 11 days?

5 days either way: The error is plus or minus 5 days. So at 12 weeks the range is one of 11 days. Earlier ultrasounds are more accurate. If the ultrasound was done between 6 and 10 weeks, the error would be plus or minus 3 days for a range of 7 days. ...Read more

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If you have a 12 wk u/s and it reads 12 wks+4days, and if there is an 11 day range of error, wouldn't there be a different measurement of the fetus?

If you have a 12 wk u/s and it reads 12 wks+4days, and if there is an 11 day range of error, wouldn't there be a different measurement of the fetus?

Pregnancy Dating: For the situation you describe the infrasound due date may be the better estimate. At most centers a first trimester ultrasound is accurate to 7 says. Since there is a greater than a 7 at discrepancy from your menstrual period dating, the ultrasound date is used. ...Read more

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What point is an embryo, fetus, or baby considered a human being in the u.S.?

What point is an embryo, fetus, or baby considered a human being in the u.S.?

Depends: This depends on who you ask. Some have a personal opinion that life begins at conception, some at "reasonable expectation of viability", some at birth.Various states have their own legal definition of status.I don't expect the arguments to be resolved in my lifetime & i doubt there will ever be a consensus on the matter. ...Read more

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Fetus was measuring accurate at 5w3d and 8w4d u/s. But this time I should be 11w3d but u/s showed only 10w1d with a strong heartbeat. Why?

Fetus was measuring accurate at 5w3d and 8w4d u/s. But this time I should be 11w3d but u/s showed only 10w1d with a strong heartbeat. Why?

Margin of error: There are various margins of error at various gestational ages on sonograms. The margin of error in a first trimester sonogram is about 7 days. You can confirm with your doctor but it appears you are within the normal range ...Read more

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In 12 wk u/s margin of error is 1 wk. Is this error on the due date or error on fetus measurements? Don't fetuses grow at same rate in 1st trim?

Both: When measuring such small dimensions with shadows, the test is going to use a range. When they say 1 week, it is plus or minus a week. As the pregnancy moves further along, the accuracy will improve as they have more baby to measure & features to study. ...Read more

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How does a fetus develop?

How does a fetus develop?

Genetic programming: Just like a computer program the genetic composition of the developing egg determines what will appear on the "computer screen"(baby). In conjunction with good nutrition by the mother, Voila! a new life to nurture. ...Read more

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How to increase fetus weight?

How to increase fetus weight?

Healthy diet.: Human fetal growth relies on many factors, most of which are not modifiable (e.g. Genetic material, placental function). Some others are, namely healthy diet, avoidance of smoking cigarettes and euglycemia. The curve attached shows how the human fetus grows exponentially near the end of the pregnancy - so another thing you can do to help your fetus grow is to avoid stress and reach your due date. ...Read more

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Can a 9 week fetus look 7 weeks?

Can a 9 week fetus look 7 weeks?

Maybe but not likely: You have to understand that the usual way to date is weeks from the menstrual period, which is presumed( but not always )2 weeks from conception. But, if a good ultrasound is done and the first third of pregnancy, it should be accurate to within 5 days, not 2 weeks off! if within 5 days, they way still go by the menstrual period or probable date of conception... Talk to your ob! hope this helps. ...Read more

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Can an eight week old fetus die?

Can an eight week old fetus die?

Yes: A fetus can be lost on any day of a pregnancy due to a number of reasons. ...Read more

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How can medications affect a fetus?

How can medications affect a fetus?

Depends: Every medication is different....Some are safe with no harmful effects, while others can be extremely harmful to a fetus. Contact your provider to make sure you are on appropriate meds. Don't stop anything you routinely take for medical conditions without first discussing with your provider. Doing so can sometimes cause dangerous situations for you or your baby. ...Read more

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Can you make yourself lose a fetus?

Can you make yourself lose a fetus?

Why would u want to: There are risks associated with anything that poses a risk to an individual and when a woman is pregnant, any risk of harm to her whether intentional or not is doubled. I suggest you talk to a therapist and or your obstetrician about having these thoughts so you can get the help you so much deserve. Some pregnancies can be challenging and one needs a lot of support at such times. Good luck. ...Read more

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When do fetuses begin feeling pain?

When do fetuses begin feeling pain?

Fetal pain: The studies show that a fetus doesn't feel pain until late in the second trimester or early third trimester, around 26-29 weeks. There is some variability in when this occurs. ...Read more

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When is a fetus considered a human?

When is a fetus considered a human?

Depends: The fetus rapidly takes on a human form during the first trimester. The heart starts beating during this time as well. It depends upon your belief system as to when you think the fetus is more than living tissue. Some feel that the fetus has a soul at conception-thus rendering the fetus human. Others do not believe the fetus is human until born. Others feel the fetus is not human until viability. ...Read more

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May i know the Gender of the Fetus?

May i know the Gender of the Fetus?

Ultrasound: You will need to have an ultrasound to know the gender of the fetus. You can also do an amniocentesis which is more invasive but more accurate and definitive to get a DNA test for sex determination. I am not sure if that is necessary unless you have a family history of genetic disorder that is related to sex of the baby. ...Read more

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Wants to know about gender of fetus?

Wants to know about gender of fetus?

Depends: It depends on the stage of pregnancy what is the best way to determine the gender of a fetus. Chorionic villus sampling is possible in the first trimester. In the second trimester, amniocentesis is possible. Ultrasound is possible a little later but is less reliable and dependent on fetal positioning and the skill of the tech doing the ultrasound. The reason for doing the testing determines which ...Read more

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Why does not a fetus move that much?

Why does not a fetus move that much?

Some do, some don't: Fetus' have a sleep period in utero just like us and sometimes movement is not detected. If the mother notes an absence or diminished movement by the fetus over time her OB MD will do additional testing to check on the baby with a non stress test.(NST) ...Read more