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  2. Nuchal scan - Wikipedia

    en.wikipedia.org/wiki/Nuchal_scan

    How to define a normal or abnormal nuchal translucency measurement can be difficult. The use of a single millimeter cutoff (such as 2.5 or 3.0 mm) is inappropriate because nuchal translucency measurements normally increases with gestational age (by approximately 15% to 20% per gestational week from 10 to 13 weeks). [10]

  3. Crown-rump length - Wikipedia

    en.wikipedia.org/wiki/Crown-rump_length

    An ultrasound showing an embryo measured to have a crown-rump length of 1.67 cm and estimated to have a gestational age of 8 weeks and 1 day. Crown-rump length (CRL) is the measurement of the length of human embryos and fetuses from the top of the head (crown) to the bottom of the buttocks (rump).

  4. Obstetric ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Obstetric_ultrasonography

    Perhaps the most common such test uses a measurement of the nuchal translucency thickness ("NT-test", or "Nuchal Scan"). Although 91% of fetuses affected by Down syndrome exhibit this defect, 5% of fetuses flagged by the test do not have Down syndrome. Ultrasound may also detect fetal organ anomaly.

  5. Prenatal testing - Wikipedia

    en.wikipedia.org/wiki/Prenatal_testing

    Around weeks 11–13, nuchal translucency scan (NT) may be offered which can be combined with blood tests for PAPP-A and beta-hCG, two serum markers that correlate with chromosomal abnormalities, in what is called the First Trimester Combined Test. The results of the blood test are then combined with the NT ultrasound measurements, maternal age ...

  6. Chorionic villus sampling - Wikipedia

    en.wikipedia.org/wiki/Chorionic_villus_sampling

    Increased nuchal translucency or other abnormal ultrasound findings; Family history of a chromosomal abnormality or other genetic disorder; Parents are known carriers for a genetic disorder; Advanced maternal age (maternal age above 35). AMA is associated with increase risk of Down's syndrome and at age 35, risk is 1:400.

  7. Trump's win is already scrambling supply chains - AOL

    www.aol.com/trumps-win-already-scrambling-supply...

    Trump has vowed to enact sweeping trade restrictions ranging from across-the-board import duties to increasing the cost of goods from China through tariffs as high as 60% to 100%.

  8. Doppler ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Doppler_ultrasonography

    Absence of the portal system in a first trimester case associated with hygroma and aorto-umbilical fistula. (A): Transverse plane of the upper abdomen with color Doppler applied, showing umbilical cord insertion, stomach, the prominent hepatic artery and no afferent liver venous perfusion; (B): midsagittal plane reconstructed from a three-dimensional volume acquisition were the crown-rump ...

  9. Ballard Maturational Assessment - Wikipedia

    en.wikipedia.org/wiki/Ballard_Maturational...

    The New Ballard Score allows scores of −1 for the criteria, hence making negative scores possible. The possible scores then range from −10 to 50, the gestational range extending up to 20 weeks. (A simple formula to come directly to the age from the Ballard Score is Age=((2*score)+120)) / 5. Maturity Rating: