Patent ID: 8871147

Claim:
A sample analyzer comprising: a measurement unit that holds a reagent to be used in a sample measurement and configured to measure a sample by using the reagent; a memory that stores a usage amount of the reagent which was used by the measurement unit; a controller programmed to calculate an estimated usage amount of the reagent for a specific day, based on the usage amount of the reagent stored in the memory; and a display unit, wherein the controller operates to control the display unit to display a screen image including: a first bar graph indicating a remaining amount of the reagent held by the measurement unit; a second bar graph indicating the estimated usage amount of the reagent for the specific day; first numerical information indicating, by means of a numerical value, the remaining amount of the reagent; and second numerical information indicating, by means of a numerical value, an excess or shortage amount of the remaining amount of the reagent relative to the estimated usage amount of the reagent; wherein the specific day is set as a target estimation day of the week, and the controller is further programmed to calculate the estimated usage amount of the reagent for the specific day by: filtering the usage amount of the reagent into first usage data relevant to operation days; filtering the usage amount of the reagent into second usage data relevant to the same day of the week on which the target estimation day of the week falls; determining an average usage amount of the reagent on the target estimation day of the week based on the first usage data and the second usage data; determining a number of irregular holidays that are before and consecutive to the target estimation day, where the irregular holidays comprise holidays that do not fall on Saturday or Sunday; adjusting the average usage amount of the reagent based on the number of irregular holiday; and determining the estimated usage amount of the reagent for the specific day.