Bhatt C R, Widmark A, Shrestha S L, Khanal T, Ween B
Biosphere Impact Studies, Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, Belgium.
Kathmandu Univ Med J (KUMJ). 2012 Jul-Sep;10(39):48-51. doi: 10.3126/kumj.v10i3.8019.
Radiation, which is used extensively to diagnose and treat human diseases, poses an occupational health risk for the concerned health workers. Personal dosimetry is an important tool to monitor occupational radiation exposures.
This study was conducted to reveal and to describe the situation of occupational radiation exposure monitoring among staffs in different health care facilities in Nepal.
A cross-sectional study was performed among the 35 Health Care Facilities. Information about types and number of X-ray procedures performed, types and number of personnel involved, workload and the availability of personal dosimetry service were collected.
Six Health Care Facilities had personal dosimetry service available for a total of 149 personnel. Of a total of nearly one million X-ray procedures performed in the 35 Health Care Facilities in 2007, 76 percent was performed by non-monitored personnel. The majority of the facilities performing high dose procedures, like catheterisation, angiography and intestinal barium procedures did not offer personal dosimetry for the involved personnel.
There are a limited number of personnel being monitored with personal dosimetry. There are no regulatory dose limits for occupationally exposed staff. Thus, there is an urgent need to establish a national radiation protection authority to regulate the use of radiation in Nepal.
广泛用于诊断和治疗人类疾病的辐射，对相关医护人员构成职业健康风险。个人剂量测定是监测职业辐射暴露的重要工具。
本研究旨在揭示并描述尼泊尔不同医疗机构工作人员职业辐射暴露监测的情况。
对35家医疗机构进行了一项横断面研究。收集了有关所进行的X射线检查程序的类型和数量、涉及的人员类型和数量、工作量以及个人剂量测定服务的可获得性的信息。
6家医疗机构为总共149名人员提供个人剂量测定服务。在2007年35家医疗机构总共进行的近100万次X射线检查程序中，76%是由未受监测的人员进行的。大多数进行高剂量程序（如导管插入术、血管造影术和肠道钡剂检查）的机构没有为相关人员提供个人剂量测定。
接受个人剂量测定监测的人员数量有限。对于职业暴露人员没有规定的剂量限值。因此，迫切需要在尼泊尔建立一个国家辐射防护机构来规范辐射的使用。
