27
Quality control and calibrations, continued
Start of the system-check cycle
System checks: Automatic test sequences done with each measurement and at other times to
make sure that all parts of the analyzer operate within specifications.
Built-in QC measurements
Sensitivity calibration of
pCO
2
,
cGlu, cLac and status calibration of the oximetry parameters
Sensitivity calibration of pH and the electrolytes (
cK
+
,
cNa
+
,
cCa
2+
,
cCl
–
)
Sensitivity calibration of
pO
2
Time period after a replacement
Calibration frequency
0-4 hours
In connection with every measurement
4-6 hours
Every 15 minutes
6-8 hours
Every 30 minutes
8-12 hours
Every hour
12-24 hours
Every 2 hours
A status calibration of all parameters (except the oximetry parameters) is done before
every patient, QC and sensitivity calibration measurement.
Calibration frequency after a sensor cassette replacement
Calibrations are done more frequently in the 24-hour period that follows a sensor
cassette replacement. This has an effect on the number of analyses that can be done
per hour during this time period.
Note:
A calibration takes up to 2½ minutes.
Here is an overview of the default
schedule for system checks, QC
and calibration measurements that
the analyzer does to make sure that
patient results are accurate, precise
and reliable.
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EXT-VEND-MAN-0023-1 Owner:Julie Monnox Approved:27 Mar 2019
