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Glossary-7
Glossary
Levey-Jennings
chart
A visual representation of measured QC values used to
detect results that fall outside of the established control
limits and to observe trends or shifts in control values.
LIS
Laboratory information system. A computer system that
is used for data management in one or more
laboratories.
Maintenance
The Menu screen option that accesses maintenance
functions, such as Deproteinize, Condition, and Prime.
Measurement
The Troubleshooting menu option that tests electrical
sensor output.
Measurement
module
The area of the system that measures the analytes in a
sample. It consists of the sensors, preheater,
measurement block, and sample ground/temperature
sensor.
Menu mode
The system operating state that lets you perform all
system functions other than sample analysis. Menu
mode accesses the Calibration, Troubleshooting,
Maintenance, Data Recall, Operating Setup, System
Setup, System Utilities, and Service Setup menus.
Menu screen
The screen that appears when you are in Menu mode.
From this screen, you can access all system functions
other than sample analysis.
message box
A box that displays information that requires you to
perform an action or select an option by pressing an
F-key. The message box remains on the screen until you
respond.
Microsample
A sample that has a total volume less than required for a
standard capillary/syringe analysis. When measuring a
microsample, the system measures pO
2
and pCO
2
and
then advances the sample to measure the remaining
parameters.
numeric keys
The keys on the keypad that you use to type numbers.
offset
The value obtained through linear regression analysis
that represents the variance that is constant between the
data points in one set of data and any of the data points
in another set of data. An offset of 0.0 indicates no
variation.