Cell Blank Measurement Results Are Summarized As Follows - Siemens ADVIA 1800 Operator's Manual

4. Evaluate the results.
• Replace cuvette sets with 4 or more cells in a set are flagged abnormal.
NOTE:
N flag.
• If all the cells fail.
a. Make sure the tubing is in the cuvette conditioner.
b. Make sure the cuvette conditioner is dispensing through WUD probe 4.
c. Repeat steps 1–3.
d. If all cells still fail, contact your local technical support provider or distributor.
5. If required, reprint the results.
6. Print the statistical results and abnormal cell blank list printout and keep with
laboratory records.

Cell blank measurement results are summarized as follows:

Printed data
The printed data is the OD (optical density) value X 1000. Each cell has two values and a
mean value.
Abnormal cuvettes
A list containing abnormal cuvettes is printed as part of the cell blank. The list contains
marks indicating abnormality. Cuvettes on the list are not used for analysis. Abnormal
cuvettes have the following characteristics:
•
Cuvettes exceeding the cell standard value (set in the System Parameters System
window) are marked "H" or "L."
•
Cuvettes exceeding the cell breakup limit value (set in the System Parameters
Settings window) are marked "N."
•
Cuvettes exceeding the skip absorbance value (set in the System Parameters Settings
window) are skipped (marked
•
Cuvettes exceeding the lamp energy voltage limits are skipped (marked U or D), and
therefore not used for analysis.
•
Abnormal cuvettes remain registered as abnormal until a future measurement
determines that they can be used.
Reference value
The reference value (the average value of the measurements of all cuvettes) remains the
same until the next measurement.
136
An abnormal cuvette is defined as any cuvette with an uppercase
), and therefore not used for analysis.
E
H ,
ADVIA 1800 Operator's Guide
L , or