• Photometry test
Execute with the user programme.
To make the functional check, use the following BioSystems reagents and reference materials:
• Glucose reagent (12503)
• ALT reagent (12533)
• Multi-standard serum (18011)
• Level I and II control serum (18009 and 18010)
Change the following parameters in the glucose and ALT test programmes:
Number of replicates: 20
Multistandard concentration: Enter the value.
Programme the following list:
Two patients called: Level I and Level II
Programme the tests for each patient: Glucose and ALT
Execute the list. e analyser will perform the blank, standard and 20 replicates at each control serum level. Once
it has nished it will display the results.
Calculate the CV for each result with the 20 replicates.
e CV is calculated as:
formula19
CV = SD over Media cdot 100
CV =
SD
Media
⋅100
formula18
SD = sqrt {sum from i=1 to n (x_i - Media)^2 over {n-1}}
SD=
∑
i=1
n
x
i
−Media
2
n−1
Check that the results are within the margins:
Biochemical precision CV (%)
Control serum Level I glucose < 2
Control serum Level II glucose < 2
Control serum Level I ALT < 4
Control serum Level II ALT < 2
Check that the mean of the results for each control serum is within the margins indicated in the value entered in
each control serum.
If the results are not within the above margins, the analyser is damaged. Solve the problem. Once repaired, perform
the functional check again.
Finalisation
Put an indelible label on the repackaged equipment. e label should bear the following information (check the
national legislation in each country):
• e company name and address and the names of the persons responsible for the execution and repackaging
• e date of the last inspection
• e number of repackaging operations carried out
Service Manual
130
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