The matrix of IQC and EQA materials is always going to be an issue and as has previously been stated, does not mirror the patient samples. Even the way the quality sample is packaged means that samples are not handled the same way as patient samples in most cases.
We mainly use the GEM Premier 5000 with its iQM2 software with Intraspect. Our quality checks are based on process control solutions in the cartridge and enrolment in EQA. Traditional QC charts are not produced and interpretation is a different process, but largely reliant on the algorithms built into the software to assess if the system is 'working'.
Regards
Tony Cambridge MSc., BSc., Prince2
Lead Biomedical Scientist
Blood Sciences and POCT
Derriford Combined Laboratory
University Hospitals Plymouth NHS Trust
T: 01752 430050
E: [log in to unmask]
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-----Original Message-----
From: ACB Point-of-Care Testing [mailto:[log in to unmask]] On Behalf Of Kathy Richmond
Sent: 30 January 2020 16:50
To: [log in to unmask]
Subject: Re: Blood Gas EQA
Hi David
There's no misunderstanding of the role/definition of EQA
However there is a supposition that blood gas EQA is not an EFFECTIVE OR TIMELY provider of assurance or tool for quality management.
Ideally we would have an independent QC material with stated values.
We would use this more, use EQA less and reflect on what real value EQA delivers in the context of blood gases.
The point being that EQA scheme manufacturers may be in a position to provide both sorts of material.....and/or support labs in both.
Regards
Kathy
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