Sigma Metric Analysis
In 2007, Scientists at the Mayo Clinic performed an interesting study of multiple POC glucose methods to evaluate their performance.We apply Westgard Sigma analysis to this data. Do you think world class performance is possible at the point of care?
Analysis of the Roche cobas 6000, apply the different analytical quality requirements for Glycated hemoglobin (GHb) and evaluate its performance. What requirements should you pick? What rules should you use?
When a new POC instrument reports it has great precision, is that all you need to know about performance?
We look at a 2008 poster from the AACC/ASCLS convention and evaluate method validation data on the Roche cobas c311. See how the data can be converted into Sigma-metrics and ponder the implications.
A 2008 evaluation study of a new point of care analyzer instrument for rapid complete blood counts. Two key parameters, WBC and Hemoglobin, are analayzed. What does it mean when the study claims the precision and accuracy of the instrument are "within acceptable limits"?