Roche Cedex Bio, Operator'S Manual, Page: 285 / 496

Roche Diagnostics
Operator’s Manual · Version 3.1 B-155
Cedex Bio System 7 Configuration
Applications
Calculation definitions
Calculation definitions (ratio applications)
Item Values Comment
Factor Used for sample and control results.
Final result = (result * Factor ) + Offset
The correlation factor is used to compensate for
differences in measuring methods of different
instruments. By applying a factor, the final
results of the different instruments can be
directly compared.
Offset The offset is used to compensate for differences
in measuring methods of different instruments.
By adding the offset, the final results of the dif-
ferent instruments can be directly compared.
Valuation No Valuation
Reference Range Use the limits defined as Low Limit and High
Limit .
Low Used On , Off Refers to Low Limit .
High Used On , Off Refers to High Limit .
Low Limit Results that are outside the limit are flagged.
High Limit Results that are outside the limit are flagged.
1...3:Flag QC Fail On , Off Choose On to ensure that all sample results are
flagged that were generated using a test whose
QC results were marked with a flag.
The initial number refers to the control that was
used for performing the QC. (See also
Control
definitions .)
TRL Threshold value below which the results are no
longer displayed, instead it is indicated that the
value is smaller than the TRL value and the
<Test Rng flag is added.
Note that you can only change this value if TRL
Check is activated.
Table B-15 Calculation definitions
Item Values Comment
Application A
through D Up to 5 alphanumeric
characters Short names of the installed applications.
Coefficient w
through z
000 … 999 Numeric variable for use in the formula.
Formula Defined application
and coefficient letters.
Operands:
+, -, *, /, (, ), and space
The formula relates the defined applications
with the coefficients.
For example: (A * w + B) * A / B
Table B-16 Calculation definitions for ratio applications