fa بررسی سلولهای خونی(WBC,RBC.Platlet)پرتوکاران شاغل در بخشهای رادیولوژی بیمارستانهای شهر بیرجند در سال1390 General پژوهشي Research Article Background and Aim: Ionizing radiation can cause irreversible damages in individuals who are somehow exposed to radiation. Counting blood cells (CBC) can be used as a criterion to reveal the extent of injury to the hematopoietic system by ionizing rays. The present study aimed at examining blood cells of the radiology staff in the radiology wards of Birjand hospitals in 2011. Materials and Methods: In this case-control study, 36 radiology staff of Birjand radiology wards (cases) and 36 individuals who worked in other wards and had nothing to do with radiation but were matched with the cases regarding intervening variables were assessed. Cell blood count was measured by means of sysmix machine. The obtained data was analysed at the significant level P= 0.05 using SPSS (V.16) using statistical tests independent-T, one-way variance, and Pearson’s correlation coefficient. Results: The study population covered 18 males and 18 females. Mean white blood cells and monocytes in radiation personnel were lower compared to that of the control group. No significant correlation was observed between age, gender, educational level, and working record on hand with blood cell count, on the other. Conclusion: Regarding ever- increasing of ionizing radiation use in Medical Imaging, it is necessary to observe standards and more accurately in medical radiology centers, especially in nuclear medicine. Besides, the present study indicates that radiation exposure must seriously be followed up by authorities in charge.   Radiation,Ionizing,Blood Cells,X-Rays,Occupational Diseases,Occupational Exposure,Allied Health Personnel 80 86 http://mcj.bums.ac.ir/browse.php?a_code=A-10-1-561&slc_lang=fa&sid=1 Mahmoodreza Tavakkoli محمودرضا توکلی 10031947532846004181 10031947532846004181 No M.Sc of Medical Physics, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran. کارشناس ارشد فیزیک پزشکی، عضو هیات علمی دانشکده پزشکی، دانشگاه علوم پزشکی بیرجند، ایران Mahbobeh Moradalizade محبوبه مرادعلی زاده 10031947532846004182 10031947532846004182 No B.Sc of Laboratory Sciences, Broujen Valiasr Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran کارشناس علوم آزمایشگاهی، بیمارستان ولی عصر بروجن، دانشگاه علوم پزشکی شهر کرد، ایران Gholamreza Ananisarab غلامرضا عنانی سراب 10031947532846004183 10031947532846004183 No PhD of Immunohematology, Faculty of Paramedical Sciences Birjand University of Medical Sciences, Birjand, Iran دکترای ایمنوهماتولوژی، عضو هیات علمی دانشکده پیرا پزشکی، دانشگاه علوم پزشکی بیرجند، ایران Seyed Mahmood Hosseini سید محمود حسینی 10031947532846004184 10031947532846004184 Yes M.Sc of Biostatistics, Faculty of paramedical Sciences, Birjand University of Medical Sciences, Birjand, Iran. Email:smhosseini39@yahoo.com کارشناس ارشد آمار حیاتی، عضو هیات علمی دانشکده پیرا پزشکی، دانشگاه علوم پزشکی بیرجند، ایران. تلفن: 05614444050 پست الکترونیک: smhosseini39@yahoo.com