Siemens ADVIA 2400, Operator'S Manual, Page: 53 / 200

System Overview 53
The QC Daily Precision Control window can manage a maximum of 20 results for each
control product (level). Only the most current QC data are saved when more than twenty
controls are run in a day. (If an additional control sample is run, the oldest control sample
is deleted to make room for the new one. Similarly, if multiple repetitions (up to 5) of a
control are requested when 20 results have already been stored, the system aspirates the
sample multiple times and saves the results as the last ones in the sequence, discarding
the same number at the beginning of the sequence.)
To avoid losing control results, you must perform a QC cumulative save on the QC Daily
Precision Control window at the end of each day, and perform a New Start when the
system is turned on the next day.
Do not update the QC Cumulative window more than once each day.
If you return to the QC Daily Precision Control window after performing a "QC
cumulative save," you must not perform another update.
You must not perform an update when there are no daily control data available. The
cumulative data point will be deleted for today and no additional control data can be
saved for the day.
QC Cumulative window
Use this window to manage the day-to-day (cumulative) QC information.
Perform any of the following tasks at this window:
•
specify the time interval you want to review
•
view the Levey-Jennings charts (x-r charts)
•
view the detailed control data information and omit invalid control results
•
view the QC summary list
•
use cumulative statistics to establish the Daily QC mean and 1 SD values
•
print the cumulative x-r charts
•
delete the cumulative QC data
Control Data Setup window*
Use the Control Data Setup window to manually enter the control mean and 1SD limits
for evaluation of the daily and the cumulative control statistics. Typically, you enter
values obtained from the package insert of a commercial control.
You can also obtain the control mean and 1SD values from the actual control results
using the Daily Precision Control and QC Cumulative windows, and then allow the
system to load them automatically into the Control Data Setup window. For example: use
the procedures to enter data for a pool of patient samples you want to run as a control.
Perform any of the following tasks at this window:
•
enter the mean and 1SD values
•
print control data registration information
•
delete control data registration information
•
copy control data registration information