Roche OMNI C, Инструкция по эксплуатации

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5 Quality control
5-2
Instructions for Use, Roche OMNI C, Rev. 4.0, December 2002
5.2 Important information concerning the analysis of
QC measurement results
It must be ensured or checked (specifically for software versions earlier than 1.31!),
whether "Multirules" rule 1 and 2 are activated (see the section "Multirules" on
page 5-11) and whether the QC consequence "QC error" was assigned to the param-
eters (see the section "QC consequences" on page 5-13)!
With software version 1.31 and later, a blocking is automatically generated (if nec-
essary) as long as the standard settings have not been changed!
The evaluation depends upon which
σ
areas are featured in the QC measurement results:
Measured value is within the target value range ± 2 σ
No consequences! The parameter is OK.
The QC measurement result is perfect, and the parameter is/remains activated for measure-
ments.
Measured value is outside the target value range ± 3
σ
Consequence: The parameter receives the QC consequence "QC error".
The QC measurement result is not acceptable. The parameter is locked for additional mea-
surements and may only be released for additional patient measurements after the problem
has been corrected (see "QC unlock" on page 5-14).
Measured value is larger than target value ± 2 σ , but smaller than target value ± 3 σ
Consequence: The parameter receives the QC consequence "QC warning".
The user must now analyze the QC measurement results in accordance with applicable reg-
ulations or repeat the measurement.
Call up the QC statistics in the QC database (see the section "Database > QC data" in chapter
8, "Operating modes") to aid in the analysis.
The analysis can be automated by activating additional multirules (see the section Multir-
ules" on page 5-11).
If the result of the repeated measurement is larger than target value ± 2
σ
, but smaller than
target value ± 3
σ
, the parameter must not be used for additional patient measurements.
If the error persists, replace the electrode and/or contact customer support!!