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  2. Amniocentesis - Wikipedia

    en.wikipedia.org/wiki/Amniocentesis

    An amniocentesis is typically performed in the second trimester between the 15th and 20th week of gestation. [5] Women who choose to have this test are primarily those at increased risk for genetic and chromosomal problems, in part because the test is invasive and carries a small risk of pregnancy loss. [5]

  3. Prenatal testing - Wikipedia

    en.wikipedia.org/wiki/Prenatal_testing

    Since amniocentesis has approximately a 0.5% chance of miscarriage, one of those 200 normal pregnancies might result in a miscarriage because of the invasive procedure. Meanwhile, of the 3792 women told they are low-risk by the Quad test, 2 of them will go on to deliver a baby with Down syndrome.

  4. Pregnancy test - Wikipedia

    en.wikipedia.org/wiki/Pregnancy_test

    Medical providers often struggle to 'rule out' pregnancy for medical testing or treatment that cannot be conducted during pregnancy before they can do an accurate urine pregnancy test. [ 27 ] More rare, false negative results can also occur due to a " hook effect ", where a sample with a very high level of hCG is tested without dilution ...

  5. Testing Women, Testing the Fetus - Wikipedia

    en.wikipedia.org/wiki/Testing_Women,_Testing_the...

    Testing Women, Testing the Fetus by Rayna Rapp is a book, published in 1999, about analysis of the social repercussions of prenatal genetic testing.Rapp combines the data she collected herself with historical context of amniocentesis and genetic counseling to argue that amniocentesis and those abortions following positive test results is a social decision as much as an individual one.

  6. Prenatal sex discernment - Wikipedia

    en.wikipedia.org/wiki/Prenatal_sex_discernment

    A meta-analysis published in 2011 found that such tests are reliable more than 98% of the time, as long as they are taken after the seventh week of pregnancy. [1] [2] Chorionic villus sampling (CVS) and amniocentesis are two rather invasive testing procedures. These may, in principle, be performed as early as the 8th and the 9th week of pregnancy.

  7. Maternal–fetal medicine - Wikipedia

    en.wikipedia.org/wiki/Maternal–fetal_medicine

    The development of amniocentesis in 1952, fetal blood sampling during labor in the early 1960s, more precise fetal heart monitoring in 1968, and real-time ultrasound in 1971 resulted in early intervention and lower mortality rates. [2]

  8. How Long Does It Take to See Results from the ... - AOL

    www.aol.com/long-does-see-results-mediterranean...

    “Pregnant women beginning a Mediterranean diet at eight to 12 weeks pregnant had a 25% lower risk of developing gestational diabetes at 24 to 28 weeks pregnant. Following a Mediterranean diet ...

  9. Percutaneous umbilical cord blood sampling - Wikipedia

    en.wikipedia.org/wiki/Percutaneous_umbilical...

    Fetal viability typically occurs at about 24 to 25 weeks of gestation. [2] When the fetus is in between the ages of 24–34 weeks, a glucocorticoid is given to the patient about 24 hours before the procedure to stimulate lung maturity. An ultrasound is performed before the procedure to view the position of the fetus and may be used during the ...