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  2. Medical imaging in pregnancy - Wikipedia

    en.wikipedia.org/wiki/Medical_imaging_in_pregnancy

    2 to 4 weeks: 0 to 2 weeks: Miscarriage or none (all or nothing) 50 - 100 [1] 4 to 10 weeks: 2 to 8 weeks: Structural birth defects: 200 [1] Growth restriction: 200 - 250 [1] 10 to 17 weeks: 8 to 15 weeks: Severe intellectual disability: 60 - 310 [1] 18 to 27 weeks: 16 to 25 weeks: Severe intellectual disability (lower risk) 250 - 280 [1]

  3. Percutaneous umbilical cord blood sampling - Wikipedia

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

    Blood sampling may be achieved with more ease if the placenta is in the anterior position. However, if the placenta is in the posterior position, the fetus might block direct access to the umbilical cord. Once the umbilical cord is reached and the correct position of the needle is confirmed, the fetal blood is drawn.

  4. Prenatal testing - Wikipedia

    en.wikipedia.org/wiki/Prenatal_testing

    The AFP test is often done in the second trimester using the serum from the maternal blood draw. This test looks at a specific protein that is formed in the liver of the fetus and released into the fluid contents of the womb, which is then absorbed into the mother's blood stream. Multiple determinations stem from the results of AFP testing.

  5. Pregnancy test - Wikipedia

    en.wikipedia.org/wiki/Pregnancy_test

    The two primary methods are testing for the female pregnancy hormone (human chorionic gonadotropin (hCG)) in blood or urine using a pregnancy test kit, and scanning with ultrasonography. [1] Testing blood for hCG results in the earliest detection of pregnancy. [2] Almost all pregnant women will have a positive urine pregnancy test one week ...

  6. Leopold's maneuvers - Wikipedia

    en.wikipedia.org/wiki/Leopold's_maneuvers

    In obstetrics, Leopold maneuvers are a common and systematic way to determine the position of a fetus inside the woman's uterus. They are named after the gynecologist Christian Gerhard Leopold. They are also used to estimate term fetal weight. [1] The maneuvers consist of four distinct actions, each helping to determine the position of the fetus.

  7. Position (obstetrics) - Wikipedia

    en.wikipedia.org/wiki/Position_(obstetrics)

    In obstetrics, position is the orientation of the fetus in the womb, identified by the location of the presenting part of the fetus relative to the pelvis of the mother. Conventionally, it is the position assumed by the fetus before the process of birth, as the fetus assumes various positions and postures during the course of childbirth .

  8. Maternal physiological changes in pregnancy - Wikipedia

    en.wikipedia.org/wiki/Maternal_physiological...

    Uterine enlargement beyond 20 weeks' size can compress the inferior vena cava, which can markedly decrease the return of blood into the heart or preload. As a result, healthy pregnancy patients in a supine position or prolonged standing can experience symptoms of hypotension. [23]

  9. Fetoscopy - Wikipedia

    en.wikipedia.org/wiki/Fetoscopy

    Fetoscopy is an endoscopic procedure during pregnancy to allow surgical access to the fetus, the amniotic cavity, the umbilical cord, and the fetal side of the placenta.A small (3–4 mm) incision is made in the abdomen, and an endoscope is inserted through the abdominal wall and uterus into the amniotic cavity.

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