COULTER HmX Hematology Analyzer, Справочное руководство

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PN 4237523A GLOSSARY-3
GLOSSARY
Diff -
1. Leukocyte differential parameters, items, and processes relating to them.
2. On the REPRODUCIBILITY screen, the difference between the minimum and maximum
results for each parameter.
3. On the Startup and System test screens, diff psi = difference between sheath pressure and
sample pressure.
Differential Analysis - Analysis of individual WBCs with VCS technology to differentiate and
group them into subpopulations.
Diluter - Primary operating unit of the instrument. It aspirates, pipets, dilutes, mixes, lyses
and senses.
dL - Deciliter, a unit of volumetric measurement equal to 0.1 liter.
DMS (Data Management System) - Computer software that controls instrument operation. It
displays, stores, and recalls sample data, and allows you to communicate with the instrument.
EDTA - Ethylenediaminetetraacetic acid.
Expiration Date - The last day when you can use a lot number of a reagent, control, or
calibrator.
FAC % DIFF - In CBC calibration, the percentage difference between the old (OLD CAL
FAC) and the new (NEW CAL FAC) calibration factors.
Field - Area on a screen for entering data. Whenever you move a cursor, you are moving it
from field to field.
Flags - Codes which appear such as H, L, R, * next to parameter results. These indicate
possible abnormal conditions.
Flow Cell - A device through which white cells flow, one cell at a time, to be simultaneously
assessed for cell volume, conductivity, opacity, and light scatter.
ft - Foot or feet, a unit of linear measurement.
fL - Femtoliter, a unit of volumetric measurement equal to 10
-15
meter.
Function Key - Any of the keys labeled F1 to F12. You use these to command system and
individual screen processes.
g - Gram, a unit of weight.
gal. - Gallon, a unit of volumetric measurement.
H - A code representing a high value.
Hemoglobinometry - Measurement of hemoglobin in the blood. In Beckman Coulter
instruments, this is done by comparing the amount of light that passes through a diluted
lysed sample in which the released Hgb has been chemically converted, with the amount of
light that passes through a blank.