Another question that came up in our Cut Your QC webinar last month:
"If a lab is repeating QC until the QC "passes", must all the out-of-control QC be recorded in the LIS? Should they be marked as accepted or rejected?"
If you take an action during troubleshooting, or during any step of your laboratory operations, you should record it. To selectively edit out the actions you don't like to admit you do is to blind the future.
What is the reason you want to delete this repeats from you record? Because you are ashamed of the fact that you do so many repeats? Again, if you're doing something in the lab that you would prefer to hide or conceal from others – that's probably a good indicator that you should stop doing that. If repeating controls embarrasses you, stop it.
In order to fully understand your analytical quality, you need to acknowledge the repeats, and admit that this is not a scientific practice.
If you are recording the repeats, by the way, you should also annotate which values are "rejected" and which values are "accepted."
Remember, if you go deeper into the root cause of this problem, you will probably find that you are using the wrong rule or rules, the most common culprit is the 1:2s rule. That generates too many false rejections, which typically leads to the excessive repeating that everyone doesn't like to confess they do.