Blood analyzing method for D dimer (DD) content

A blood analyzing method comprising:

• performing optical measurement on a first calibration measurement sample prepared from a fibrin/fibrinogen degradation product (FDP) measurement reagent and a first calibrator, wherein the first calibrator contains D dimer (DD) at a first value of a ratio of FDP content to DD content (FDP/DD ratio);
• acquiring first calculation data including a first shape characteristic of a first time course curve representing a temporal change in first optical information obtained by the optical measurement on the first calibration measurement sample;
• performing optical measurement on a second calibration measurement sample prepared from the FDP measurement reagent and a second calibrator, wherein the second calibrator contains DD at a second value of FDP/DD ratio that is different from the first value;
• acquiring second calculation data including a second shape characteristic of a second time course curve representing a temporal change in second optical information obtained by the optical measurement on the second calibration measurement sample;
• acquiring calibration curve information based on the first calculation data, the second calculation data, the first value, and the second value;
• performing optical measurement on an analysis measurement sample prepared from a blood sample and the FDP measurement reagent;
• acquiring analysis calculation data of FDP content based on a temporal change in third optical information obtained by the optical measurement on the analysis measurement sample;
• and
• acquiring analysis calculation data of DD content based on the analysis calculation data of FDP content and the calibration curve information.