Page 78 © Boule Medical AB, March 2018. Article no. 1504496
9. Troubleshooting and System Messages
System Information Messages
System Information Messages
As samples are analyzed, the system software may produce two types of intelligent information
messages. The information is designed to guide and aid the user in the practice of complete
hematology. The categories of information are:
Low & High Abnormal Results – message of abnormal patient results or out-of range control
results with a or notation
Out of Alert Limits Results – an indicator and double triangle is used if the value is out of alert
limits.
System Information – messages for checking some aspect of the analyzer system.
Description of Information Indicators
Information is indicated on the touch screen with the results and is printed on the patient report. For
System Information messages, the touch screen’s i-button becomes active when a message is present.
The information is automatically included in the printed report. The user has the preference to access
this information detail by either touching the i-button on the touch screen or reviewing the printed
sample report. Further detail and background information may also be obtained by referring to this
section of the user manual.
Low and High Abnormal Results
Reference ranges may be stored in the system software for each prole conguration. When a patient
sample is analyzed, the system software will compare each parameter value to its corresponding
reference range stored in the system software. Any value that is outside the reference range will result
in display of a for Low or for High next to the value. This information is included on the printed
patient report. The printed report also shows the reference range for all values.
Specic Assay Value Ranges: The Low and High abnormal results messages are also applied to
results of control samples compared with lot specic assay value ranges. The barcode reader enters
assay value ranges into the system memory for each lot of control material. The barcode reader is
used to identify the control lot by scanning the tube each time a control is analyzed. The assay value
ranges are designed to demonstrate that the system is both calibrated to a reference standard and
operating to specication. Control sample results are expected to be within these ranges 99% of the
time. A sporadic value slightly outside the limits may occur normally. Troubleshooting action should
be taken when control values are either consistently out of range or when values are markedly out of
range.
Out-of-Range Indicators
Values that are out of measurement range are indicated by MH (out of upper range) and ML (out of
lower range) indicators, and the value will not be shown on the patient report. This means the count
is too high or too low to measure. If it is expected that the parameter is too high, the sample can be
diluted and re-analyzed, and then the dilution factor can be multiplied with the result to calculate the
correct value.
Abnormalities
All samples with anomalies and/or abnormal distributions signaled by the analyzer should be
analyzed manually by a blood smear. Pathological cells may vary in their stability towards lysing
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