Abstract: Disclosed herein is a computerized blood analyzer system. The system includes a clinical analyzer CU and a blood analyzer AU. The clinical analyzer has a computer which issues commands and instructions to the AU as desired. These commands and instruction's include retrieval and storage commands and instructions. The blood analyzer unit AU is electronically connected to the CU and operates upon the commands and instructions of the CU. The AU generates test results which are stored in the computer. The computer has storage media for storing the results. The storage media comprises an aggregate database which includes at least two parts, namely a working database and an archived database. It is preferable in many case for the aggregate database to include a back-up database. Each of the databases stores the data in similar data fields, organization and structure comprising symmetrical-like databases. This enables a single set of commands and instructions to store and retrieve the data.