Feb 3rd, 2010, 14:45 | 只看该作者 #27 |
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亚洲人阴性血少,白人稍多一点,夫妻双方如果一阳一阴,孕期容易出问题,溶血儿,特别是第一胎没有保住的情况下,第二胎基本没戏,八角说的打针就是这个意思 因为阴性血的人少,所以如果出现需要输血的情况,可能血库很难找到血 建议阴性血的人一要随身带NOTE,二要有条件的情况下去献血,利人利已 |
上得学堂,下得厨房,当得拳皇,混得流氓,胖的走样,仍然二的坚强
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感谢 crystal1104 此篇文章之用户: |
090826 (Feb 3rd, 2010) |
Feb 3rd, 2010, 14:45 | 只看该作者 #28 |
不愿流光把人抛
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People with different blood types have proteins specific to that blood type on the surfaces of their red blood cells (RBCs). There are four blood types — A, B, AB, and O. Each of the four blood types is additionally classified according to the presence of another protein on the surface of RBCs that indicates the Rh factor. If you carry this protein, you are Rh positive. If you don't carry the protein, you are Rh negative. Most people — about 85% — are Rh positive. But if a woman who is Rh negative and a man who is Rh positive conceive a baby, there is the potential for a baby to have a health problem. The baby growing inside the Rh-negative mother may have Rh-positive blood, inherited from the father. Approximately half of the children born to an Rh-negative mother and Rh-positive father will be Rh positive. Rh incompatibility usually isn't a problem if it's the mother's first pregnancy because, unless there's some sort of abnormality, the fetus's blood does not normally enter the mother's circulatory system during the course of the pregnancy. However, during delivery, the mother's and baby's blood can intermingle. If this happens, the mother's body recognizes the Rh protein as a foreign substance and can begin producing antibodies (protein molecules in the immune system that recognize, and later work to destroy, foreign substances) against the Rh proteins introduced into her blood. Other ways Rh-negative pregnant women can be exposed to the Rh protein that might cause antibody production include blood transfusions with Rh-positive blood, miscarriage, and ectopic pregnancy. Rh antibodies are harmless until the mother's second or later pregnancies. If she is ever carrying another Rh-positive child, her Rh antibodies will recognize the Rh proteins on the surface of the baby's blood cells as foreign, and pass into the baby's bloodstream and attack those cells. This can lead to swelling and rupture of the baby's RBCs. A baby's blood count can get dangerously low when this condition, known as hemolytic or Rh disease of the newborn, occurs. |
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感谢 红樱桃,绿芭蕉 此篇文章之用户: |
090826 (Feb 3rd, 2010) |
Feb 3rd, 2010, 14:47 | 只看该作者 #30 | |
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