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CELL-DYN
3000 System Operator’s Manual
9140240E — May 1995
Principles of Operation Chapter 3
The RBC count is corrected for coincidence and the pulses are edited by
the RER before the MCV is derived. The PLT pulses are analyzed by the
PLT algorithm as discussed in the PLT measurement section.
RBC Parameters
All numeric and frequency size distribution data are automatically
displayed on the
size distribution data for the red cells is displayed graphically as a
histogram. The size distribution data is plotted on the X axis. The relative
number of cells is normalized and plotted on the Y axis. The RBC data
are shown in Figure 3.10.
Figure 3.10: RBC Data and Histogram
RBC Count
The Red Blood Cell (RBC) count is directly measured, gives the number
of RBCs and is expressed as follows:
RBC = # x 10
6
/µL
MCV
The Mean Corpuscular Volume (MCV) is the average volume of the
individual red blood cells. The MCV is derived from the RBC size
distribution data and is expressed in femtoliters.
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