After three rounds of expert opinion polls, the following results were obtained. The total criteria for standardization of laboratories, the average time of sample transfer to different departments for testing, the weight of the waste, the number of laboratory tests, the number of false tests, the number of samples, the space available for service, the number of kits, the average time of waiting to take the sample, personnel wages, average test response time, income, cost of consumables, safety costs of testing unit, and safety costs of sampling unit all lie in the high to very high range. Other criteria including the number of patients admitted, the number of correct tests, the number of replies to the prepared tests, and lab profits lie in the medium to high range. By eliminating the two criteria "laboratory space and land value and personnel welfare costs", of the 21 effective criteria of diagnostic laboratories, in the three stages of the survey, 19 effective criteria were identified in the area of diagnostic laboratories. Table 4 illustrates the final effective criteria for evaluating the performance of the diagnostic laboratories by the Delphi method. Table4. Effective indicators for assessing the performance of medical diagnostic laboratories