Difficulties in conducting preliminary and periodic medical examinations of workers in contact with ionizing radiation sources

A well-studied effect of irradiation is a lesion the hematopoietic system, manifested by cytopenic changes in peripheral blood varying severity. decrease concentration cells those working under these conditions has always been reason for conducting an in-depth examination order to exclude radiation genesis and identify true cause changes. However, current Order Ministry Health Russian Federation dated 28.01.2021 No. 29n, among contraindications irradiation, there are no leukocytopenia thrombocytopenia, as well other conditions, development which possible due exposure factor. The study aims assess prevalence cytopenia employees one enterprises subordinate FMBA Russia exposed at workplace, sufficiency requirements clause 4.1 (ionizing radiation, radioactive substances) 29n regarding preservation health detection diseases/conditions that prevent continuation work conditions. Scientists have conducted analysis results periodic medical examinations 54 who contact with ionizing sources workplace 6 years. We used methods variational statistics analysis. Among workers maximum permissible doses, 21.5% had mild moderate (leuko-, lympho-, granulocytopenia anemia). repeatedly identified 12.1%, In 1.4%, thrombocytopenia were combined proteinuria detected once 2020. observed throughout all years follow-up without combination 3 workers. During observation authors 13% revealed objective difficulties arisen recently connection entry into force 29n. absence such paragraph 4.1, regulating conduct allows people signs damage system continue necessary search cytopenia. It restore leukopenia <4.0×109/l, <180.00 109/l. Limitations. limited contingent nuclear industry enterprise received dose external contamination radionuclides within acceptable limits. Experts system. Ethics. compliance Ethics Committee A.I. Burnazyan Federal State Budgetary Research Center Russia, Protocol 68 March 18, 2022.