COULTER HmX Hematology Analyzer, Reference Manual

Page: 104 / 128

PN 4237523A 2-GLOSSARY
GLOSSARY
CLIA - Clinical Laboratory Improvement Amendments.
Closed-Vial Sampler (CVS) - In the instrument, a carousel cap-piercing mechanism for the
closed-vial mode.
cm - Abbreviation for centimeter, a unit of linear measurement equal to 0.01 meter.
Codes - On the screen and printouts, symbols such as ++++, – – – –, • • • •, H/L, R, *R, ::::
that further explain the sample results. See the Parameter Codes Table in the Operator's
Guide for more explanation.
Coefficient of Variation (CV) - An expression, in percent, of data spread as related to the
mean.
CV% = (SD/Mean) 100
Coincidence - More than one cell within the aperture sensing boundaries at the same time.
The system senses these as one large cell rather than as two distinct cells, so it generates one
large pulse.
Conductivity Analysis - In the flow cell, high-frequency electromagnetic energy probes white
cell content to measure nuclear size, density, and granularity.
Control Disk - A data diskette that contains the assay values for the lot number of the control
being used.
Current Batch - The
%
batch that the instrument is accumulating data on right now.
Cursor - On a computer screen, a place shown by a little blinking indicator or by a
highlighted area. The cursor shows where you can select an option or type in information.
CV (Coefficient of Variation) - An expression, in percent, of data spread as related to the
mean.
CV% = (SD/Mean) 100
CVS (Closed-Vial Sampler) - In the instrument, a carousel cap-piercing mechanism for the
closed-vial mode.
Data Management System (DMS) - Computer software that controls instrument operation. It
displays, stores, and recalls sample data, and allows you to communicate with the instrument.
Defaults - Original settings in the DMS. You can change these to tailor operation to your
situation.
Definitive Flags - Labels displayed when results exceed limits your laboratory set for
indicating such conditions as leukopenia, anemia, thrombocytosis, and so forth.
DELTA DIFF - For CBC calibration, the absolute difference between the mean and the
reference values for WBC, RBC, Hgb, MCV, Plt, and MPV.
DF Displays (Discriminant Function) - DIFF scatterplots as seen in two dimensions from
two angles of the distributional cube. See the Operator's Guide for explanation and examples.