Objective To analyze the diagnosis of occupational radiation diseases in Hubei Province, China between 1986 and 2021, and to assess the occupational health risks of radiation workers in Hubei Province. Methods A retrospective analysis was conducted on the diagnosis institutions, diagnosis case characteristics, and typical problems encountered in the diagnosis process of occupational radiation diseases in Hubei Province between 1986 and 2021. The findings were analyzed and discussed in conjunction with current occupational disease diagnosis standards and relevant regulations. Results There are currently 3 authorized occupational radiation disease diagnosis institutions in Hubei Province, with a total of 14 diagnostic physicians. Among them, 9 (64.3%) have senior professional titles and 12 (85.7%) possess postgraduate degrees; however, only one has a professional background in radiological medicine. From 1986 to 2021, a total of 139 cases of occupational radiation diseases were diagnosed. Chronic radiation sickness from external exposure accounted for 40.3%, radiation-induced cataract for 21.6%, and radiation-induced tumors for 18.7%. Among all cases, 81.4% were engaged in diagnostic radiology and interventional radiology, 3.1% were engaged in radiotherapy, and 3.1% were engaged in nuclear medicine. Diagnosed cases were primarily concentrated among medical radiation workers, especially those involved in X-ray diagnosis. Issues identified during the diagnosis process included illegal acceptance of subjects, non-standard dosage estimation, and illegal procedures. Conclusion The incidence of occupational radiation diseases in Hubei Province showed a declining trend. The diagnosis of occupational radiation diseases needs to be improved, and the occupational health management of key radiation workers should be further strengthened.

Objective To analyze the problems and solutions in the diagnosis of a patient with occupational radiogenic neoplasms. Methods The dose conversion method was selected in dose estimation. Personal dose equivalent, skin absorbed dose, and reported detection data were converted into red bone marrow absorbed dose. The upper 95% confidence limit of the probability of causation (PC 95%) was calculated. Results The PC 95% of cancer due to radiation in the worker was 66.38%, which suggested occupational radiogenic neoplasms. Personal dose data were missing in dose estimation. The current dose estimation standard lacked bedside radiography and CT operation type, and the dose conversion formula was not perfect. Conclusion In the judgment of occupational radiogenic neoplasms, the estimated dose showed uncertainty. There is an urgent need to formulate and promulgate dose estimation standards that are operational and in line with the current development of radiological diagnosis and treatment technology and equipment.

CT is an important imaging tool for the diagnosis of novel coronavirus pneumonia (COVID-19), therefore, it′s necessary to strictly control the disinfection of CT workplace and equipment and biosafety to avoid the place from becoming a potential infection source and to reduce the risk of infection of patients and radiological staff. It is also necessary to reduce the CT scan dose to minimize the radiation hazards on patients under the premise of ensuring the CT image quality and diagnostic efficiency. Based on the survey that novel coronavirus residues after disinfection at some CT workplace in domestic and overseas and the application of low-dose CT scan in diagnosis of COVID-19, as well as the current situation of radiological protection management in emergency hospital, this paper summarizes and proposes suggestions on infection control and radiological protection for CT workplace to strengthen the defense line of COVID-19 prevention and control.

Objective To grasp bilirubin in the quality control serum and calibration items in the same batch the variation law of the designed to ensure that the test quality and the use of reasonable quality control serum and calibration items ,control testing cost .Methods laboratories use The double level quality control serum and calibration items after dilution is divided into five groups ,with automatic biochemical analyzer test for 12 weeks and recorded results of TBIL ,DBIL .use SPSS 17 .0 to calculate the mean ,standard deviation ,coefficient of variation ,Normal distribution analysis and make the results trend line chart to observe any changes .Results RANDOX normal concentration quality control serum TBIL and DBIL values variation RCV% 26 .0% ,48 .2% , more than CLIA bilirubin projects allow 1/3 of the total error value(6 .67% ) .Normal distribution test ,P value was 0 .006 ,0 .012 , less than 0 .05 ,do not obey the normal distribution ,test results line chart is on the decline .LEADMAN high concentration quality control serum and bilirubin calibration items TBIL and DBIL variation RCV% <6 .67% ,normal distribution test all P>0 .05 ,obey the normal distribution ,test results no trend line chart .Conclusion Through the experiment observation to the quality control ser‐um and calibration items bilirubin in the variation law of 12 weeks .Experimenter can be used according to the actual situation to ad‐just ,not only to ensure the quality of the bilirubin test ,and to get the most out of the quality control serum and calibration items use efficiency ,reduce the test cost .

The daily life information needs of elderly people in different areas of China were analyzed , which showed that the elderly people are most concerned about TV news information, health information, recreation infor-mation, welfare information , and popular science knowledge .

OBJECTIVE:To improve inspection in drug control room in order to ensure drug safety of patients.METHODS:The status quo and problems of drug control room were analyzed to put forward some measures for inspection monitoring,such as enhancing self-examination,quality assessment,equipment maintenance,regular training of test techniques and operation.RESULTS & CONCLUSIONS:The quality assurance system is improved by monitoring inspection in drug control room in various ways to ensure the accuracy and reliability of test data and drug safety of patients.