Automatic analysis device and automatic analysis method

An automatic analysis method using an automatic analysis device including a specimen dispensing mechanism, a reagent dispensing mechanism, a measurement unit, a coagulation time calculation unit, a graph creation unit, and a display unit, the method comprising:

• a step of dispensing test plasma and/or normal plasma added to correct a coagulation time of the test plasma into a plurality of empty specimen containers, and dispensing each of prepared specimens containing only the test plasma, only the normal plasma, or mixed plasma obtained by mixing the test plasma and the normal plasma from the specimen container to a reaction container, by the specimen dispensing mechanism;
• a step of dispensing a reagent into the reaction container by the reagent dispensing mechanism;
• a step of emitting light from a light source to the prepared specimen to which the reagent is added in the reaction container and measuring a light intensity of obtained scattered light or transmitted light, by the measurement unit;
• a step of calculating, by the coagulation time calculation unit, a coagulation time based on the light intensity measured by the measurement unit;
• a step of creating, by the graph creation unit, a graph related to a coagulation time of each prepared specimen calculated by the coagulation time calculation unit;
• a step of displaying, by the display unit, the graph created by the graph creation unit;
• and
• a step of creating, by the graph creation unit, a graph using at least one of a coagulation time calculated for a prepared specimen prepared outside the automatic analysis device and a coagulation time estimated by the coagulation time calculation unit based on a light intensity measured using another prepared specimen, when a prepared specimen for which the coagulation time is incalculable is present.