Lot to Lot Validation Glucose Strips

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Hello,
I just started in POCT, there is a new lot of glucose strips that I need to validate, what is allowable percent difference that you use? 

Thank u.

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The Allowable Error is +/- 12% for results over 100 mg/dL and +/- 12 mg/dL under 100 mg/dL

Hello
Follow-up questions:  What validation(s) are you performing?  Simple precision, linearity?  Glucose strips waived or moderate complexity??

Where did you get the Allowable Error from CLIA, CAP??

Thank you

To all, 

In the 30+ years I have been in POCT, I have never performed lot to lot on glucose strips for the reasons below.  
  1. Waived testing doesn't require it from any regulatory body that I know of.  Please let me know if there is a standard that you are reading that requires this that I have missed. It could be that this is just one of the things that "the lab does" (like establishing control ranges for QC materials) that may not be applicable to POC. The pathologists that I have asked about this said that it was "make work and adds no value."  
  2. Nursing orders do not change with the allowable error. Nursing orders here are something like "200-250 mg/dl equals X insulin units" The plus or minus 12 mg over 100 is going to be in that range. 
  3. All of our strips are the same QC range. (Roche) One of the customer service reps stated that range hadn't changed in the multiple decades they have worked there. 
  4. We use over 1M strips per year. (7 hospitals) I may only see two lots per year-again all with the same range for QC. 
  5. In the 1990's, for a different meter system, I would look at the glucose QC for shifts. That is now not useful due to the same strip QC range.

let me know if there is a standard that I have missed that requires this. Thanks. 

Thank you for your responses everyone, I am just new in this role and working my way around things. This group is such a big help. 

@Deanna Bogner : thank you for taking time to respond, to answer your question, we are not following a CLIA or CAP requirement

@Elizabeth St PierreThank you, I just found a previous document of what our evaluation criteria is, I am glad to know it's more or less the same as what you said. 

If you are a CAP lab, no need to validate lot to lot if your glucose meter is waived. Those regs have been around for a long time for waived testing.
JoAnn

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