A-A+
What should be done immediately after the matc
问题详情
What should be done immediately after the matched donor has been found？
A．Unhealthy cells of the patient are killed through radiation or chemotherapy.
B．Healthy cells are extracted from the donor.
C．Extracted cells are prepared in the laboratory.
D．The donor"s cells are transplanted to the patient.
参考答案
正确答案：A
解析：细节题。文章第四段介绍了骨髓移植的整个过程：捐赠者与受赠患者的骨髓经鉴定相匹配时，就进行下一步，即通过放疗或化疗杀死病人的病变细胞，再用类似于抽血的方法从捐赠者骨盆中或手臂上提取健康的细胞，送到实验室培养，然后再像输血一样，通过静脉注入病人体内。这些被移人的细胞一旦进入患者的骨髓被吸收后，就可制造出生命必需的健康的红细胞、白细胞和血小板。所以找到匹配骨髓后，就要杀死病变细胞，所以A正确。
