Roche ACCU-CHEK Inform II, Operator'S Manual

Page: 89 / 212

Linearity Testing •
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7 Linearity Testing
7.1 Information regarding linearity tests
Observe the applicable regulations and directives of the
responsible regulatory agencies when performing glu-
cose control tests. See also safety message “Allergy or
injury caused by reagents and other working solutions”
on page 18. For information about sources for products
required during linearity testing, contact your local Roche
representative.
Linearity tests can help you to check the function and
accuracy of the entire system over the full range of spec-
ified values. Linearity samples should be treated in
exactly the same manner as previously described for con-
trol solutions used in glucose control testing.
The term “Linearity” describes the ability of the system to
maintain a constant accuracy over the full range of spec-
ified values. If test results were plotted against reference
values as a curve over the full range of these values, the
ideal (high linearity) would be a straight line. Linearity is
the range of values from the lowest to the highest for
which an instrument is proven capable of giving accurate
results.
When using a data management system for configu-
ration, it is possible to partially or fully disable the
functions described in this chapter. In this case, the
respective buttons in
Main Menu 2 do not appear. See
also Appendix A.