Bayer HealthCare ADVIA 60, Руководство оператора

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9. MAINTENANCE AND TROUBLESHOOTING
Page 9/8 075D0002-01
where : = mean = standard deviation
= individual value = # of observations
The following CVs should be obtained : Parameters %CV
WBC <2.5%
RBC <2.0%
HGB <1.7%
HCT <2.0%
PLT <5.0%
Proceed with the identification procedure if precision is acceptable. If the precision of any parameter
is not within these specifications, identify the out-of-range parameter(s) and initiate appropriate
troubleshooting procedures.
9.2.2.4. Calibration
If the system appears to be operating properly, fresh uncontaminated reagents are being used,
and the precision is within the specifications, the
ADVIA 60-
CT
may need calibration. Calibrate
your instrument as described in section 7.
9.2.3. Troubleshooting parameters
The procedures described below should be performed whenever the precision of a parameter is
not within the specifications noted above, or a parameter result is incorrect or suspicious.
9.2.3.1. WBC and HGB
Perform the following if both your WBC and HGB results are incorrect or suspicious. Press the
START key and closely observe the specific operations of the analyzer listed below in the order
specified. Identify the malfunction(s) and initiate appropriate troubleshooting procedure(s).
Sample probe : During the initial dilution cycle, is the sample probe between the edge of the
WBC chamber and the center of the chamber, close to the bottom?
SD =
Σ
( X - Xi )
n - 1
2
X
X
i
SD
n