H50/H51 Hematology Analyzer User Manual QC
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The system will indicate whether the result of each parameter is outside the limits with H/L. If
the results of some parameters are outside the acceptable ranges, check the following items:
z Refer to the user manual to confirm that the test procedures are correct.
z Controls are stored properly and don’t expire.
z The system passes the STARTUP.
z If the QC test fails, conduct sample test with the sample which must have been tested
yesterday after the analyzer’s QC test succeeds and then observe whether there are some
differences between the test results obtained today and the results obtained yesterday. If
there is no difference, please contact Edan’s service engineer. If there is difference, it
means the analyzer might need to be calibrated. Please do the calibration and then re-
conduct QC test. If the QC test still fails, please contact Edan’s service engineer.
z If the QC test fails, re-conduct QC test with the previous lot of controls. Contact Edan’s
service engineer if the QC test with the previous lot of controls succeeds. Calibrate the
analyzer if the QC test with the previous lot of controls still fails. Re-conduct QC test
after calibration. If the QC test still fails after the analyzer’s calibration, please contact
Edan’s service engineer.
z It is recommended to perform instrument calibration if at least one of parameters is out
of limits from a significant degree.
NOTE:
1) Concerning Controls’ usage, storage, handling and other details, please strictly
respect its user manual.
2) Perform QC tests every day before sample analysis. If not, all results will be
displayed and printed with the indication “QC not done”.
3) If QC test fails, all results will be displayed the indication “QC FAILED” unless a new
QC test succeeds.
4) The analyzer can keep 100 results (results and histograms) per lot for 12 different
lots.
5) The column allows selecting or unselecting a result in the table. Mean, SD and
CV are only decided by the selected results ( ) in the table. Automatic calculations
will be implemented accordingly.
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