医务放射工作人员微核的监测分析

目的通过对医务放射工作人员外周血淋巴细胞做核4年的检测结果动态分析，探讨微核与工龄、工种之间的关系。方法以广东省某医疗卫生单位接受体检的医务放射工作人员为研究对象，采用常规培养法测定微核率，并按年份、工龄、工种等分类进行微核率比较。结果医务放射工作人员外周血淋巴细胞微核率与工龄等因素有关。结论放射工作人员的嫩核率随放射工龄的增加呈现剂量累积效应，应加强放射工作人员的防护。

Survey on Micronuclei of Peripheral Blood Lymphocytes among Medical Staffs Exposed to Radiation

Objective To analyze the changing trends of micronucleus rate of peripheral blood lymphocytes among medical staffs exposed to radiation and investigate the reason of this change. Methods Medical staffs exposed to radiation in a hospital in Guangdong Provinee were studied for 4 years. Micronucleus of peripheral blood lymphocytes were detected each year, using the conventional culture method. The relationship between mieronucleus rate and the exposure time and job title were analyzed. Results The rates of micronucleus were obviously related to the exposure time. Conclusion The micronucleus rate of medical staff exposed to radiation increased and had a positive relation with the service time. More protective measures against radiation should be taken to protect these medical staffs.