Why are test results from different hospitals not mutually recognized?

There may be several reasons why test results from different hospitals are not mutually recognized: 1. Different testing standards: Different hospitals may use different testing standards and techniques, which may lead to differences in test results. 2. Different sample collection: Different hospitals may use different sample collection methods and time, which may also lead to differences in test results. 3. Laboratory differences: Different hospitals may use different laboratory equipment, reagents and operating procedures, which may also lead to differences in test results. 4. Different equipment, reagents and operation procedures may be different in different hospitals, which may also lead to differences in test results.4. Different data processing: Different hospitals may also have different data processing methods for test results, such as threshold settings, quality control standards, etc., which may also lead to differences in test results. In conclusion, the lack of mutual recognition of test results between different hospitals is mainly due to the lack of uniform testing standards and quality control standards. In order to ensure the accuracy and comparability of test results, uniform testing standards and quality control standards should be adopted and data ****sharing between different hospitals should be strengthened.