Prenatal testing is a routine part of seeing your obstetrician during pregnancy. Learn about the CVS test, amniocentisis, and more.
Learn what to expect during this prenatal test that every pregnant woman should have at least once.
-Hi, I'm Dr. Jamie Grifo the program director for the NYU Fertility Center. Were gonna be talking about the ethical issues and methodologies involved in gender selection and family balancing. There's been a lot of interest in gender selection. Most of the patients who really seek it are the
now that are really accurate that work really well but they're really high tech , they require a lot of technology and a lot of involvement and cost. The one technique that works the best is the most accurate. It involves in vitro fertilization and doing a genetic test of the embryo. There are times when patients have 2 boys, they want a girl and they're doing IVF anyway. That group of patients is the main group that we use. But we don't do this routinely. This is not something that's that commonly done because it is so involved because it does require in vitro fertilization . It does require weeks of injections and medicines. It does require an egg retrieval that's a minor surgical procedure and then embryo
-There was some concern, which is why we originally opted not to do it. Plus, I am of advanced maternal age as they say. I'm 39. I'm Donnabella Vicencio and this is my daughter Ava, and she's 5 weeks old. Originally, we decided-- my husband and I decided not to have an amnio and there were some
we sent it to the lab and they grow cells from that amniotic fluid and they look at the chromosomes from there. The main things that we look for in the amniocentesis is looking at the
Your First Prenatal Visit and Tests
Learn how your doctor will confirm your pregnancy—and what else will happen at your first prenatal visit.
is growing. My custom for the first visit just sort of good medical practice is to do a full exam of the patient head to toe at the first visit and that would include a pelvic exam. So, pelvic exam, a sonogram, blood tests , and lots of talking. Early, early pregnancy, the only way to get close to the baby is with a vaginal ultrasound. Later, as the baby gets bigger, then you can look through the stomach because the baby is closer and higher up in the stomach. Patients are always very, very worried about the transvaginal ultrasound. It's not such a big deal. It's really no different than a Pap smear . It's a very skinny narrow probe that goes in the vagina and just briefly angles in different directions to find the baby.
The Importance of Glucose Testing
This simple test looks for potential cases of gestational diabetes, to help prevent complications in your pregnancy.
do a 2-hour or 3-hour glucose tolerance test; and this is the diagnostic test to see if you really have diabetes on pregnancy. If that is positive, then you do have diabetes, then it's a combination of nutrition counseling to eat an appropriate diet that avoids high concentrations of sweets. So, you control the amount of carbohydrates. Exercise is an important part of it. So, diet and exercise are used to help keep your glucose levels in good control. And the way we know if you are in good control or not is you do some self-testing. These are the fingerstick blood sugars that are done and they are mapped out, and hopefully just with diet and exercise , that adjusts the numbers. If not, then medication would be used.
All About First Trimester Screening
First trimester screening is relatively new, and it's a blood test and sonogram that checks the genetics of the baby. One of the big concerns over time has been chromosomal abnormalities for the baby, Down syndrome, Trisomy 13, Trisomy 18, these sort of dangerous conditions that lead to babies that
First trimester screening is relatively new, and it's a blood test and sonogram that checks the genetics of the baby. One of the big concerns over time has been chromosomal abnormalities for the baby, Down syndrome , Trisomy 13, Trisomy 18, these sort of dangerous conditions that lead to babies that may not even survive birth. The beauty of the first trimester screen is that it's a noninvasive test. A blood test done in our practice at 9 weeks combined with a sonogram that's done at 11 weeks and then it will give a patient an estimate of her risk for Down syndrome , and then our patients use that estimate to decide what further testing they do or don't wanna do. In the first trimester
thicker than this average number, then that can show a risk of Down syndrome . In my practice I send the blood component 2 weeks earlier to the lab that runs the blood component, and then when
you have the sonogram. When a patient has a low risk for Down syndrome based on the screening test but she's nervous that it's not 100 percent answer, now this patient could choose instead of doing the amnio and having the risk of miscarriage, she could choose to do this new blood test called MaterniTY 21 and get on paper a 99 percent answer about her pregnancy, and so that seems very, very powerful. What this test is doing is it takes the mother's blood and then looks in the mother's blood for tiny fragments of cells from the baby. So that even at you know 10, 15 weeks pregnant, our bodies have little bits of genetic material from our baby which is a fascinating concept to begin with, and using, you know, modern technology those tiny fragments are identified and magnified and then tested to see if the baby has Down syndrome .
Should You Have an Amniocentesis?
Amnio can help diagnose chromosomal abnormalities, like Down Syndrome. Find out if you need this test.
water through the membrane, which was called the amnion and into the amniotic fluid . And so the fluid is withdrawn and then sent to the laboratory to determine the baby's genetics or the baby's carrier type
What to Expect at Your Ultrasound
You'll get your first glimpse of your baby at this test, but doctors will be ensuring that everything's growing just as it should.
accurate, a tiny bit more refined; and it's called the modified sequential blood test and so that's a blood test that's done at 16 weeks.
Do You Need a CVS Prenatal Test?
Chorionic villus sampling lets your doctor test for chromosomal abnormailties, such as Down Syndrome. Find out if this test is right for you.
expect-- to wait somewhere in the 10- to 14-day range. For chromosome analysis , results are 100% accurate.