Dating pregnancy ultrasound accuracy

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They don't consider that intimately wrapped up in the question of prenatal testing is the moral dilemma of abortion and the thorny issue of eugenics.Barbara Katz Rothman points out: The history of prenatal diagnosis has roots in the eugenics movement..of its history has been an attempt to control the gates of life: to decide who is, and who is not, fit to make a contribution to the gene pool.It creates an image by bouncing ultrasound waves off of tissues inside the body (in this case, off of the baby).

However, information on these is beyond the scope of this FAQ. Vaginal ultrasound is used for very early pregnancy, and sometimes for heavier women with more abdominal fat.Large pregnant women face even more confusion, since prenatal testing can be slightly harder in this population, and the results can be more confusing.However, since they may be at a somewhat increased risk for problems like neural tube defects, they also face greater pressure than others to have these prenatal tests, even though the tests are often difficult to interpret.A brief description of the test, its purpose, and the procedures used are given for each test, but the majority of the information is about the specifics of large women and the test.If you need more detail about statistics, interpretation of results, rates of 'false-positives', etc., then be sure to research the many websites devoted to prenatal testing online.

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