The measured control values change abruptly up- or
downwards.
Do not compare 30 minute method with 60 minute
method result. The calculation method can give some
deviation in the general QC results statistics.
▪
Check/clean instrument and perform a new QC
sample
▪
If these errors persist perform maintenance step
▪
Compare only results from one batch.
▪
If Lab ID is used check the linked Starrsed Control
ID. It is possible that a new batch is in use without
changing to the new assayed mean value
Systematic QC errors with a trend in control values (QC results out of the range or nearly out of the range)
The measured control values change gradually upwards
or downwards.
▪
Irregular or insufficient maintenance can cause
unnecessary QC errors and ESR errors/warnings
Troubleshooting
MRN-164_2-EN Version 2.02 Interrliner
83