What methods does the deformity of checking the fetus baby have

What methods does the deformity of checking the fetus baby have
What methods does the deformity of checking the fetus baby have
Check foetus' odd-shaped common method: (1), Ultrasonography B is checks foetus' odd-shaped commonsense method: Generally during 20~24 pregnant weeks, the foetus' all internal organs can already clearly display through Ultrasonography B, if Ultrasonography B finds foetus' meninges swells to stress, not have brain, backbone splitting, hydrocephalus, much kidney at this moment, or the viscera are valgus obviously, should miscarry in time, so as not to drag to gestation to cause greater agony to pregnant woman in later period. But should pay attention to some, not every odd-shaped foetus can measure with Ultrasonography B, mongolism child or little teratogenesis that causes because the chromosome is unusual, Ultrasonography B can not be examined out. (2), pre-natal diagnosis That what kind of pregnant woman should collect the amniotic fluid, make " Pre-natal diagnosis " (used at the end of a special alternative, or rhetorical question). Pregnant woman at advanced age. Namely the pregnant woman above the age of 35, the chromosome takes place unusually to the foetus behind these pregnant women are pregnant (mongolism child) Probability will large than women other for several times,and with growth of age rise straight line. If the pregnant woman over 40 was born the mongolism child's probability could reach 6%. Person who bears mongolism child. This kind of woman is pregnant again, still have possibility of bearing the mongolism child again. Person who has balanced malposition of chromosome of one party of married couple. The disease history of the sexual chain (such as hemophilia, false loose muscular dystrophy, red green achromatopsia,etc.) in the family Crowd. Have born intelligence obstacle, congenital teratogenesis person with unidentified reason. Persons who miscarry in the history naturally many times. Pregnant there is a special medicine or person who contacts history in early days. These above-mentioned pregnant women need to do the pre-natal diagnosis inspection. The method is through carrying on science of heredity of cell to the cells in the amniotic fluid, biochemistry, cytologic to analyze, come, judge gender, blood group of foetus suffer from hereditary disease or supersession disease.


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