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  2. Crown-rump length - Wikipedia

    en.wikipedia.org/wiki/Crown-rump_length

    The blue line is the mean and the green area delimits the 3rd versus the 97th percentile. [1] Ultrasound image of the foetus at 12 weeks of pregnancy in a sagittal scan. Measurements of fetal Crown Rump Length (CRL). The embryo and fetus float in the amniotic fluid inside the uterus of the mother usually in a curved posture resembling the ...

  3. Obstetric ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Obstetric_ultrasonography

    The sex of the fetus may be discerned by ultrasound as early as 11 weeks' gestation. The accuracy is relatively imprecise when attempted early. [15] [16] [17] After 13 weeks' gestation, a high accuracy of between 99% and 100% is possible if the fetus does not display intersex external characteristics. [18]

  4. Biophysical profile - Wikipedia

    en.wikipedia.org/wiki/Biophysical_profile

    A biophysical profile (BPP) is a prenatal ultrasound evaluation of fetal well-being involving a scoring system, [1] with the score being termed Manning's score. [2] It is often done when a non-stress test (NST) is non reactive, or for other obstetrical indications.

  5. Gestational sac - Wikipedia

    en.wikipedia.org/wiki/Gestational_sac

    The blue line is the mean, and the green area delimits the 5th and the 95th percentiles. [2] A: Gestational sac, B: Crown-rump length of embryo, C: Amniotic sac, D: Yolk sac. The mean sac diameter [3] can effectively estimate the gestational age [4] between 5 and 6 weeks, with an accuracy of about +/- 5 days. [5]

  6. Amniotic fluid index - Wikipedia

    en.wikipedia.org/wiki/Amniotic_fluid_index

    Median AFI level is approximately 14 cm from week 20 to week 35, [6] when the amniotic fluid begins to reduce in preparation for birth. An AFI smaller than 5–6 cm is considered as oligohydramnios. [3] The exact number can vary by gestational age. The fifth percentile for gestational age is sometimes used as a cutoff value. [7]

  7. Timeline of human prenatal development - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_human_prenatal...

    Embryonic age: Week nr 33. 32 weeks old. The fetus reaches a length of about 40–48 cm (16–19 in). The fetus weighs about 2.5 to 3 kg (6 lb 10 oz)to 6 lb 12 oz). Lanugo begins to disappear. Body fat increases. Fingernails reach the end of the fingertips. A baby born at 36 weeks has a high chance of survival, but may require medical ...

  8. 33 Weeks! Pregnant Gigi Hadid Hints at Due Date Ahead ... - AOL

    www.aol.com/entertainment/33-weeks-pregnant-gigi...

    Everything Gigi Hadid and Her Family Members Have Said About Her Pregnancy Read article “33 weeks,” the model, 25, captioned a black-and-white photo from her July maternity shoot via Instagram.

  9. Nuchal scan - Wikipedia

    en.wikipedia.org/wiki/Nuchal_scan

    Screening for Down syndrome by a combination of maternal age and thickness of nuchal translucency in the fetus at 11–14 weeks of gestation was introduced in the 1990s. [7] This method identifies about 75% of affected fetuses while screening about 5% of pregnancies. Natural fetal loss after positive diagnosis at 12 weeks is about 30%. [6]

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