Whilst I agree with the recent postings I have to say that I feel the value of blood gas EQA is very limited.
The root questions are:
- is my user producing the right results?
-is my analyser producing the right results?
-is this batch of reagent producing the right results?
Given the nature of the samples, the limited number of users you can reach, the non-comparability of the sample to real-life, relative infrequency and the retrospective nature of the system, the ability of EQA to answer any of these questions is extremely limited and the assurances gained questionable in their weight......
In fact it would be more useful to distribute the samples knowing the correct answers so that you can investigate and educate on the spot.....
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