Patent ID: 8425839

Claim:
A sample analyzer for analyzing a sample by using a first reagent and a second reagent comprising: a first reagent container holder capable of holding a first reagent container, wherein the first reagent container accommodates the first reagent and comprises a first record section which contains a first reagent management information; a second reagent container holder capable of holding a plurality of reagent containers including a second reagent container, wherein the second reagent container accommodates the second reagent and comprises a second record section which contains a second reagent management information; at least one information reader for reading the first reagent management information from the first record section and for reading the second reagent management information from the second record section; and at least one control unit comprising a central processing unit and a memory storing computer executable program instructions, wherein when executed by the central processing unit, the computer executable program instructions cause the at least one control unit to: determine whether a combination of the first reagent and the second reagent is usable for measurement based on the first reagent management information and the second reagent management information read by the at least one information reader; when the combination of the first reagent and the second reagent is determined to be usable for measurement, initiate a measurement of a predetermined analysis item using the first reagent and the second reagent corresponding to the combination so as to obtain a measurement result; and process the measurement result so as to obtain an analysis result of the sample.