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  2. Obstetric ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Obstetric_ultrasonography

    The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) recommends that pregnant women have routine obstetric ultrasounds between 18 weeks' and 22 weeks' gestational age (the anatomy scan) in order to confirm pregnancy dating, to measure the fetus so that growth abnormalities can be recognized quickly later in pregnancy ...

  3. Gestational age - Wikipedia

    en.wikipedia.org/wiki/Gestational_age

    The mean pregnancy length has been estimated to be 283.4 days of gestational age as timed from the first day of the last menstrual period and 280.6 days when retrospectively estimated by obstetric ultrasound measurement of the fetal biparietal diameter (BPD) in the second trimester. [12]

  4. Estimated date of delivery - Wikipedia

    en.wikipedia.org/wiki/Estimated_date_of_delivery

    The rule estimates the expected date of delivery (EDD) by adding a year, subtracting three months, and adding seven days to the origin of gestational age. [13] [14] The result is approximately 280 days (40 weeks) from the start of the last menstrual period. Another method is by adding 9 months and 7 days to the first day of the last menstrual ...

  5. Mom Begs Doctors to Treat Sick Newborn. 3 Months Later, a ...

    www.aol.com/mom-begs-doctors-treat-sick...

    Mom Begs Doctors to Treat Sick Newborn. 3 Months Later, a Scan Shows Her Liver Resembles '65-Year-Old Alcoholic' (Exclusive) Staff Author February 21, 2025 at 4:00 AM

  6. 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).

  7. 'This is me unannouncing the pregnancy': Astronaut Kellie ...

    www.aol.com/news/unannouncing-pregnancy...

    Nine days after the transfer, Gerardi's blood test indicated that the pregnancy was progressing well and her six-week ultrasound confirmed it. But then she miscarried at eight weeks. But then she ...

  8. Medical imaging in pregnancy - Wikipedia

    en.wikipedia.org/wiki/Medical_imaging_in_pregnancy

    This is an important factor when for example determining whether a ventilation/perfusion scan (V/Q scan) or a CT pulmonary angiogram (CTPA) is the optimal investigation in pregnant women with suspected pulmonary embolism. A V/Q scan confers a higher radiation dose to the fetus, while a CTPA confers a much higher radiation dose to the mother's ...

  9. Pregnancy - Wikipedia

    en.wikipedia.org/wiki/Pregnancy

    Pregnancy is divided into three trimesters, each lasting for approximately three months. [4] The exact length of each trimester can vary between sources. The first trimester begins with the start of gestational age as described above, that is, the beginning of week 1, or 0 weeks + 0 days of gestational age (GA).

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