| 20090120157 | Method for Calibrating Machines for the Analysis of Characteristic Parameters of the Blood Connected To Its Density, Such as Erythrocyte Sedimentation Rate and/or Red Corpuscles Aggregation Rate - A method for calibrating machines suitable to effect an analysis of a blood sample by means of measuring the erythrocyte sedimentation rate (ESR) and/or aggregation of the red corpuscles, wherein said measurement is effected by exploiting the optical density kinetics obtained from the measurement of the variation in the optical density of the blood sample in an interval of time, comprises a measuring step in which, by means of the same machine with which the measurement of the optical density is effected on said blood sample, a measurement is effected of the optical density of two latexes, or turbidimetric samples. Each of the two latexes has a known optical density, reproducible, measurable and different from each other. The method also comprises a comparison step, in which the difference is calculated between the values of optical density of the latexes as obtained from the measurement performed by the machine and the known values of optical density, to allow to determine at least one correction factor usable to calibrate said machine. | 05-14-2009 |
