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Background and objectives: The transmission of infection from the equipment and the environment to patients is widely carried out through contact. The aim of this study was to determine the health status of medical equipment and pseudo-homogeneous environmental levels in hospitals in Ardebil, in observational and microbiological hospitals in year 1396. Methods: in this descriptive cross-sectional study, 17 levels of hospitalization in Imam Khomeini Hospital (RA) were evaluated in a two month observational stage (by completing the checklist) and microbial. Data analysis was done by using SPSS software and by comparing it with British standards. Results: This study showed that the rate of contamination in different parts of the hospital was microbial 75.75% and 29.15%, respectively. According to statistical analyzes in the microbial method, the most infected ventilators were among the most polluted medical equipment and among the peripheral levels of the most infectious patient ward. At the observation station, among the medical equipment levels, the cliché was the most contaminated case, and among the pseudo-environmental environmental levels, the most infected fridge was determined. The most contaminated part in terms of cardiothoracic microbial monitoring was determined in terms of male in-patient observation. Conclusion: Therefore, it is suggested that by systematically planning and applying appropriate and preventive methods, implementing disinfection programs, developing guidelines for cleaning and disinfection, training and continuous monitoring of the standard methods of contamination will be minimized.

The purpose of quality control program was to make doctors and laboratory personnel trust in laboratory results and consequently increasing confidence in laboratory achievements. The quality assurance means raising the level of quality in all tests that lead to raising the level of work efficiency and laboratories including minimum expense for society and minimum time for lab personnel. This study aimed to assess and determine the accuracy and precision of results in Tabriz medical diagnostic laboratories. Materials and Methods: In this retrospective study, 790 stool samples were selected randomly and tested by standard methods.Student t- test, SPSS software and sensitivity and accuracy formulas were used for data analysis. Results: The sensitivity was 62%, 22% and 8% with 95% confidence intervals for worm's eggs, protozoan cysts and trophozoite detection respectively. Conclusion: To elevate quality assurance in clinical diagnostic laboratory, monitoring and check of the laboratories by standard methods continually should be done.