Aim of the research: To establish the existence of differences in the perception of missed interventions among nurses - technicians employed at the Surgical Department in relation to employees at the Department of Internal Diseases of Zadar General Hospital, regardless of the degree of education and among nurses - technicians who finished medical high school education and bachelors of nursing staff employed in these services. Subjects and Methods: Respondents are nurses - technicians employed in the General Hospital of Zadar at the Department of Internal Diseases and Department of the Surgical Services. The total number of nurses participating in this research is 80 (N = 80). As a measuring instrument the questionnaire "Research of Perceptions of Nurses - Technician on Missing Health Care" was used, of the Unit for Quality of the Clinical Hospital Merkur. Results: Out of a total of 100 questionnaires divided by 50 in each service, 40 properly completed questionnaires were returned from each service. 74 questionnaires (92.5%) were filled by women while 6 questionnaires (7.5%) were filled by men. 54 respondents (67.5%) have a lenght of service longer than 10 years, while the remaining nearly uniformly distributed. Almost all employees work on shifts of 8 or 12 hours or a combination of 8 + 12 hours. Statistical data processing confirmed the previously set null hypothesis. Conclusion: The results of the conducted research show that there is no statistically significant difference in the perception of missed health care among nurses - technicians employed at the Surgical Department and the Department of Internal Diseases of Zadar General Hospital and there is no statistically significant difference in the perception of missed interventions between nurses of different qualifications.