Electromagnetic radiation represents energy transmission through an immaterial medium through a flow of energy particles or quanta of energy. When passing through the material medium, there is an interaction with the medium through which they pass, and energy is transferred to the particles of the material medium. Ionising radiation (JZ) is electromagnetic radiation consisting of EM - --waves or particles with kinetic energy sufficient to ionise the substance they pass. During ionisation, orbital electrons are ejected from the atoms of the environment as negative ions and positive ions are formed from the rest of the particles. The ions formed in this way disturb the biochemical processes in the cells, which can lead to disturbances in their functioning and division and even to the occurrence of diseases, such as tumours. The effect of ionising radiation is reflected in the impact on proteins, lipids, carbohydrates and nucleic acids. The following can be recognised as occupational diseases: acute radiodermatitis, acute radiation sickness, acute radiation cataract, chronic radiodermatitis in case of exposure to ionising radiation for at least ten years, regular radiation cataract in case of exposure to ionising radiation for at least five years, malignant diseases and damage to the hematopoietic system. It is necessary to educate the entire population about the consequences that ionising radiation has on human health, provide complete protection to workers who work in radioactive radiation zones, apply all preventive and protective measures against the effects of ionising radiation in the workplace, and provide adequate, timely and professional assistance to all workers who were exposed to ionising radiation.

The aim of this study was to point out the importance of the work of a nurse in the early detection of persons at increased risk for the development of diabetes at the level of primary health care. DM is a global phenomenon and a major socio-economic and medical problem. The most important tests for the diagnosis of diabetes are the determination of HbA1c and the oral glucose tolerance test (OGTT). The paper conducted a study in the form of analysis of data on examinations performed on 330 patients in 2020 at the Health Center Veliko Gradiste during the implementation of the project “Knowledge to Health” which included screening for early detection of DM type 2 by determining HbA1c-glycosylated hemoglobin and oral glucose tolerance test. The total number of respondents in this study was 330 and the survey was conducted during 2020. The analysis of the study sample showed that more than 184 respondents (55.76%) were female. In relation to age, most respondents were in the age group over 65 (64.54%) years of age in both sexes. This indicates that age (and often associated diseases) is a significant risk factor for type 2 diabetes. Measurement and determination of HbA1c values in both men and women showed that high values were mostly found in people over 65 years of age. The glucose load test in 27 men (oral glucose tolerance test - OGTT test) showed that normal tolerance exists in 10 men over the age of 65, w h ile 3 men over the age of 65 have a high risk of developing diabetes. Diabetes mellitus was determined by a glucose load test in 4 women ove r the age of 65, then in 1 woman aged 55-64, as well as in 2 women aged 45-54. One of the basic tasks of nurses is to conduct health education work with patients, give advice for successf u l treatment and care, and if done properly, it c an reduce one of the most important public health problems of modern society.