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在优生遗传咨询门诊中,经常遇到一些孕妇及家属提出孕妇能否接受X线检查这一问题。首先,我们应知道X线做为一种电离辐射,可以诱发生殖细胞和体细胞突变,就其遗传学损伤来说,可分为基因突变和染色体畸变。X线还可直接影响胚胎细胞的正常发育,延缓或中止细胞分裂,使细胞变性坏死,以及影响人体造血系统、消化系统、神经系统和生殖系统等的正常发育。正因为如此,孕妇尽量避免接触X线是正确的。但许多孕妇、家属,也包括一些医务人员对X线辐射的损伤有过分顾虑,亦是可以理解的。其次,我们应知道X线辐射对人的损伤,同接受X线的剂量有明显关系。X线对人的损伤还有累积作用。X
In the eugenics counseling clinic, often encounter some pregnant women and their families put forward the question of pregnant women can accept X-ray examination. First of all, we should know that X-ray as an ionizing radiation can induce germ cell and somatic mutation. In terms of its genetic damage, it can be divided into gene mutation and chromosomal aberration. X-ray can also directly affect the normal development of embryonic cells, delaying or stopping cell division, degeneration and necrosis of cells, and affect the normal development of human hematopoietic system, digestive system, nervous system and reproductive system. Because of this, pregnant women try to avoid contact with the X-ray is correct. However, it is understandable that many pregnant women, family members, and some medical staff are over-concerned about the damage caused by X-ray radiation. Second, we should know that X-ray radiation damages human beings, which is obviously related to the dose of X-ray. X-ray also has a cumulative effect on human injury. X.