Using the QC Programs
8-36
For every parameter，the lower dash line represents the lower control limit of the
expected range C×
R
;
For every parameter(e.g. WBC) the three numbers to the left of its R graph are defined
as follows:
0.3 – B×
R
;
0.1 –
R
;
0.0 – C×
R
.
Where A, B, C are the control factors.
The “■” and “□”points in the graphs can be interpreted as follows:
The “■”points fallen between the upper and lower dash lines are within the control range;
The “■”points fallen outside the upper and lower dash lines are out of the control range;
The “□” points represents non-numeric parameter values (*).
If you see any points fallen outside the control range, do the following steps until the problem
is solved. If all the steps have failed, contact Mindray customer service department or your
local distributor for assistance.
1. Check the upper left corner of the screen for error messages. Refer to Chapter 11
Troubleshooting Your Analyzer for solutions to any displayed error messages;
2. Check the
X
－R settings for inappropriate entries;
3. Do the background check. In case of an abnormal background result, refer to Chapter 11
Troubleshooting Your Analyzer for solutions;
4. Re-run the control;
5. Run another vial of control;
6. Check if the analyzer needs to be calibrated.
Browsing QC results
Press [↑] or [↓] to review the preceding or following screen; press [←] or [→] to review the
preceding or following result. The
X
or R value of the current point (the one the cursor is
located at) is displayed below the
X
or R. The location of the current point is displayed in the
“No.” field. The analysis time is displayed in the “Time” field.
Printing
X
and R graphs
Press [PRINT] to print out the displayed
X
and R graphs.
Exiting the “
X
-R Graph” screen
Press [MENU] to exit to the system menu, or press [MAIN] to exit to the “Count” screen.
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