ITC Avoximeter 1000E Whole Blood Oximeter - Manual (Page 40)

ITC AVOXimeter 1000E Operator’s Manual
34
Quality Control
Good laboratory practice recommends that routine quality control testing should be part of a
comprehensive quality assurance program. Quality control testing of the ITC AVOXimeter 1000E
consists of the following operations:
● Daily optical quality control.
●
Weekly testing of one level of liquid controls.
In addition, the ITC AVOXimeter 1000E performs a “self-check” to verify that the light source is
operating properly every time it is turned on.
Note: If quality control results are out of range, refer to the Troubleshooting section for
instructions. If the “self-check” fails, contact ITC Technical Support (see page ii).
Performing Optical Quality Control
The yellow and orange optical filters supplied with the ITC AVOXimeter 1000E provide a
convenient means of verifying that the optics are not obscured by blood or debris and that the
instrument is properly calibrated. Each filter simulates a cuvette containing a blood sample of
known composition and has a serial number that matches the serial number of the instrument.
CAUTION: Each filter is labeled with a serial number that matches the serial number
of the instrument. Verify that the serial number on each filter matches the serial
number of the instrument when performing optical quality control. Each set of yellow
and orange filters can only be used only with the ITC AVOXimeter 1000E of the same
serial number and cannot be shared between different instruments.
1. Obtain the yellow and orange optical filters.
2. Run a test (see page 29), using the yellow optical filter in place of a test cuvette.
3. Record the THb and %HbO2 results, or print the results of the test (see page 30).
4. Repeat steps 2 and 3 using the orange filter.
5. Verify that the results for each filter are within the expected ranges listed below:
Optical Filter %HbO
2
Expected Range THb Expected Range
Yellow 93.5 to 96.5% 7.7 to 8.3 g/dL
Orange 37.2 to 40.8% 16.4 to 17.6 g/dL
Note: The Expected Range is also shown on the label on the side of each filter.
6. If desired, plot the optical filter results on daily logs such as the ones provided in
the Quality Control Logs section on page 65.