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Doctor insights on: First Trimester Serum Screening

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What is first trimester screening and maternal fetal medicine?

What is first trimester screening and maternal fetal medicine?

Ob terms: 1st trimester screening are any tests done during a pregnancy during the first 12-14 weeks of pregnancy. This can include ultrasounds. blood tests and others. Maternal fetal medicine is a subspecialty of obstetrics. It's also often called "perinatology". These are obstetricians who go on to do additional training in the management of high risk pregnancies. ...Read more

Dr. Debra Rosenblatt
1 doctor shared a insight

Screening (Definition)

Examples are: colonoscopy for colon polyp or cancer; mammograms for breast lesions or cancer; psa a blood test that could indicate enlargement of cancerous prostate tissue; blood sugar or hemoglobin a!c for diabetes. Many think that scanning the whole body will pick up a cancer--in all likelihood, it will not. There also is no good blood test, yet, ...Read more


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Do OBGYN test for syphilis in third trimester?

Do OBGYN test for syphilis in third trimester?

May...: In some places it is a routine to test for the basic STD's again in the third trimester but in general the CDC recommends to repeat testing at that time if there are risk factors that can point to possible active infection.Usually if the pt is younger than 25 y/o,has been recently exposed to STD's,was treated for an STD, or is a high risk for exposure( ex. multiple partners, infected partner, etc) ...Read more

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What is hCG levels in early pregnancy like the first trimester?

What is hCG levels in early pregnancy like the first trimester?

Varies: Hcg levels vary by week and even by day. See this site for more info. http://www.americanpregnancy.org/duringpregnancy/hcglevels.html. ...Read more

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Typhoid treatment in first trimester pregnancy?

Typhoid treatment in first trimester pregnancy?

Antibiotics...: ... Usually used to treat typhoid are not recommended in pregnancy, but there are safe alternatives, such a ceftriaxone. ...Read more

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How accurate are first trimester ultrasoubds?

How accurate are first trimester ultrasoubds?

Very accurate: Ultrasounds tend to get more inaccurate as your pregnancy progresses. First trimester ultrasounds are more accurate than second trimester ultrasounds, which are in turn more accurate than third trimester ultrasounds. First trimester ultrasounds can reliably predict gestational age within 5-7 days. ...Read more

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Antibody titers needed for blood when first pregnant?

Antibody titers needed for blood when first pregnant?

Yes: It is standard practice to test both rubella and HIV antibodies early in pregnancy. Typically one also gets an antigen test for hepatitis b, and a test for syphilis (sometimes an antibody test, and other times a different test is used). Additional tests such as a complete blood count, blood type, rh typing, urine analysis are standard as well. See your ob; they'll do the right tests. ...Read more

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Is early satiety normal during first trimester of pregnancy?

Is early satiety normal during first trimester of pregnancy?

Not usually: Early satiety is seen in late term pregnancy however the nausea of early pregnancy could potentially be expressed as early full feeling! I would speak with your OB-GYN about this symptom ESPECIALLY if you are LOOSING weight! Hope this helps! Dr Z ...Read more

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How accurate are first trimester ultrasounds done abdominal?

How accurate are first trimester ultrasounds done abdominal?

Diagnostics: This question is hard to answer because it depends upon what you're looking for with your first trimester ultrasound. If you're trying to figure out how far along you are in the pregnancy that is excellent, if you're trying to figure out if your baby has down syndrome it's not perfect and will require further work up with other blood tests and ultrasounds. ...Read more

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I had a normal first trimester screening and harmony prenatal test. Is an AFP blood test necessary? Can it come back high risk?

I had a normal first trimester screening and harmony prenatal test.  Is an AFP blood test necessary?  Can it come back high risk?

The msAFP is: To assess the risk of open neural tube defects i.e. Spina bifida, which is not tested by harmony or the first trimester screen. It is up to you if you would like to be screened for ntds. Keep in mind that, if detected, these defects can be repaired by a skilled pediatric neurosurgeon while the baby is still inside you. Speak to your obgyn and make an informed decision. Hope this helps. ...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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Pineapple for first trimester of pregnancy?

Food ; pregnancy: There is no restriction with pineapple and pregnancy. ...Read more

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Would a 10miu hCG test pick up pregnancy 3 weeks?

Would a 10miu hCG test pick up pregnancy 3 weeks?

Depends on the type: Of test. Blood tests measure actual levels of HCG and can detect 10 u. Urine tests are generally designed to read positive at a level of 25 u. If by 3 weeks you mean three weeks from the last menstrual period, it is likely too early to test. You should wait after a missed period to test for pregnancy. ...Read more

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Will a vanishing twin (lost at 7 weeks) affect first trimester downs syndrome testing with blood test and ultrasound?

Will a vanishing twin (lost at 7 weeks) affect first trimester downs syndrome testing with blood test and ultrasound?

Vanishing twin: No, it would not affect your test result. Ultrasound would show it for a while, but the developing twin will eventually grow big enough to hide it from view. ...Read more

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Are first trimester ultrasounds ever exact in dating?

Are first trimester ultrasounds ever exact in dating?

Early Ultrasounds: Actually they are thought to be the most accurate. ...Read more

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What is a first trimester screening for a fetus?

What is a first trimester screening for a fetus?

Blood and U/S tests.: First trimester screen for any pregnancy includes a sonographic examination to determine plurality, basic fetal anatomy, gestational sac location, fetal viability and gestational dates - as well as blood tests (hcg, papp-a, maternit21/harmony tests) to determine the risk for down syndrome, fetal growth restriction, preeclampsia (uterine artery dopplers), preterm birth (cervical length). Nicolaides. ...Read more

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Are first trimester ultrasounds better at estimating conception or lmp?

Are first trimester ultrasounds better at estimating conception or lmp?

Better than later: A pregnancy dating ultrasound done at 8 to 11 weeks of pregnancy is pretty accurate when done by an experienced technician. The estimate can be a few days or a week off in either direction. ...Read more

Serum (Definition)

Serum is the component of blood that does not contain cells or clotting factors. It does contain electrolytes an ...Read more