Results, - Beckman Coulter LH 780 Instructions Manual

1. Select
2. Select
3. Review the results table and statistics table on the window. Use the scroll bars to review
results that do not appear on the window.
4. Verify that the CV (Coefficient of Variation) doe not exceed the established limits. If
limit is exceeded, repeat steps 8 through 13 under Performing Reproducibility Check,
until at least 11 but not more than 31 whole blood samples have been analyzed. You may
stop the analysis at any point between 11 and 31 runs if the reproducibility established
limits have been met.
Reproducibility Limits for CBC
Parameter
WBC
RBC
Hgb
MCV
Plt
MPV
1.4 PERFORMING CARRYOVER CHECK
1. Ensure pneumatics are on.
2. Ensure the blood detector is disabled.
3. Ensure the mode of operation is set to CBC. You can perform carryover check using
other operating modes, however the procedure will take longer and use excess reagents.
4. Ensure the number of aspirations per tube is set to 1.
5. Select
CARRYOVER
Note: If you want to view the carryover results as the Workstation receives them, you
can access the Carryover window (step 13) before proceeding. The background of the
Carryover window changes to the same background as the Command Center when you
change the process type to
6. If necessary, select
the results table.
7. Obtain a normal whole-blood specimen.
8. Separate the well-mixed normal whole-blood specimen into two 5 mL tubes.
9. Place the tubes into consecutive positions in a cassette.
10. Dispense 2 mL of diluent into three separate 5 mL tubes.
11. Place the three diluent tubes in the same cassette. Place the tubes after the whole-blood
specimens.
PN 773023AC
on the Command Center to display the Quality Assurance application.
to display the Reproducibility window.
%CV
<= 1.7
<= 0.8
<= 0.8
<= 0.8
<= 3.3
<= 2.2
as the process type on the Command Center.
CARRYOVER
on the Carryover window to clear out the values that appear on
PERFORMING CARRYOVER CHECK
.
1
CALIBRATION
1-3