CLIA Total Allowable Error for ACT?

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Good afternoon,

I can't seem to find the Total Allowable Error for ACT on Westgard or EP Evaluator. CAP only states "3SD" in their Participant Summary. We are trying to compare data from our ACT correlations on a replacement i-STAT. Thank you! 

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When I reached out to IL for the Hemochron Sig Elite, they stated they used 20% as the cut-off, but did not say where that number was from.

Here's a source:
Attachment.
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Thank you so much, Max and Gloria! I truly appreciate this information. I had seen in the original implementation that 20% was used years ago too, but there were no records of where they had gotten the 20% from. I wanted to make sure I use the most current and correct information. Thanks again for this source! :)

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Joy Truong
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