What's New: November 2008
New Download: Sigma-Metrics Tool (and audioconference presentation)
On September 4th, 2008, Dr. Westgard spoke as part of the AACC audioconference on "New Directions in Laboratory QC" - which was subsequently quoted in the Clin Lab News article on Risk and CLIA. We are pleased to make available Dr. Westgard's complete presentation, as well as two Sigma-metrics Charts and instructions on how to use them in QC Design.
Westgard Sigma Analysis: A new direct HbA1c Method
At the 2008 AACC/ASCLS convention, a poster was presented for a new direct enzymatic assay for %HbA1c. How does it stack up against HPLC and immunoassay methods? How do you judge a method when you've got multiple comparison methods and multiple quality requirements?
Interview: Dr. R. Neill Carey (A brief introduction to EP 15)
We were fortunate to get R. Neill Carey, PhD, the chair of the CLSI EP 15 committee, to present and
explain that new standard at the Chicago Method Validation workshop. He also contributed a chapter to the new Basic Method Validation manual on the same topic. But for those who have never heard of EP 15 before, we conducted a short interview with Dr. Carey. This short introduction to EP 15 may pique your interest in this new guideline.
Thinking about Three Sigma: 2 thoughts on troublesome performance
In a previous lesson, we discussed some possible actions to take when the Sigma-metric for a method is higher than Six. But what about those methods with low Sigma-metrics? What do you do when Sigma analysis delivers bad news?
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