Richard - If the IQA did not detect a problem of such a serious nature, presumably for several weeks, there must be serious flaw in the IQA material, the process or the equipment.
David
>>> "Mainwaring-Burton Richard (RGZ)" <[log in to unmask]> 04/08/08 17:05:00 >>>
Janice
I'm glad you are brave enough to put into words what I was thinking !!
I cannot believe that anyone would imagine that all their various analysers
or especially all channels on their main analysers would always be speaking
as one. We have recently seen a free T4 problem on one Architect which was
not evident on either by IQA, but was emphasized by EQA almost to the point
of a hit-squad letter. It was eventually tracked to a valve error which
reacted the same on calibrants and IQCs. And those are in the same room with
the same ambient temperature, humidity, water supply, electricity etc etc.
With 4 different hospital sites - - - - - !!!!!
with best wishes
Richard
Richard Mainwaring-Burton
Consultant Biochemist
Queen Mary's Hospital
Sidcup, Kent
020-8308-3084
-----Original Message-----
From: Janice Still [mailto:[log in to unmask]]
Sent: 04 August 2008 16:55
To:
Subject: Re: Cross site EQA
David, I can only assume that you have your tongue firmly in your cheek. If
not, then you have successfully taken my breath away! The analysers may be
the same, the cartridges and reagents may be the same,but what the USERS do
to them is certainly not the same.I am also concerned by your mention of
"tweaking". I thought that we had all abandoned fiddle factors long ago.
Every single one of my analysers is individually EQA enrolled and I would
not have it any other way. Recently the EQA showed a sudden negative bias on
PCO2 on one analyser, which was eventually traced to the sample path not
being kept at 37C. If I was only looking at EQA on one analyser, how would
this have been picked up? If you decided to take the lab as your "typical "
instrument, where it is looked after by qualified BMS staff, what hope
mwould there be for the instrument in A/E and all the misuse that it
gets?You simply CANNOT blithely assume that one size fits all. How do you
know that consumables have been stored correctly, or have been used before
the sell by date? At the end of the day the whole object of EQA is to ensure
that the PATIENT gets the right result on the instrument that their blood is
analysed on. Yes it is expensive. Live with it. And I hope your patients do.
JanMrs. J. Still,
POCT Manager,
Biochemistry Dept,
Watford General Hospital. 01923-217998.
The views expressed in this message are personal and do not reflect West
Herts NHS Hospitals Trust policy.
----- Original Message ----
From: David Robertshaw <[log in to unmask]>
To: [log in to unmask]
Sent: Monday, 4 August, 2008 2:09:19 PM
Subject: Cross site EQA
The Leeds/Bradford Biochemistry service has four sites all with the same
analytical equipment using the same reagents and IQA. IQA performence is
compared regularly and used to "tweak" the analysers to get the same answers
across all sites. Why then do we need to enrol all four sites in the same
EQA scheme?? If one analyser is performing satisfactorily compared to the
"National norm", (as evidenced by EQA), and the other analysers compare
satisfactorily with that one why repeat the EQA analysis?? I believe many
hospitals with several Blood Gas Analysers of the same make will only EQA
one and accept performnce of the others on the basis of IQA. Could this
principle not be applied far more widely particularly in the light of
networking and the fact that equipment, reagent production, cartridge
manufacture and standards are common across many sites.
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Please note, archived messages are public and can be viewed
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they are responsible for all message content.
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------ACB discussion List Information--------
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Please note, archived messages are public and can be viewed
via the internet. Views expressed are those of the individual and
they are responsible for all message content.
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List Instructions (How to leave etc.)
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Your Hospital needs YOU!
We need you to register as a Public, Patient or Staff member and help shape the future of your healthcare.
Call 0870 707 1532 to register by phone or, to register online visit www.bradfordhospitals.nhs.uk where you can also find out more about Membership.
This message is confidential. It may also contain privileged information. The contents of this e-mail and any attachments are intended for the named addressee only. Unless you are the named addressee or authorised to receive the e-mail of the named addressee you may not disclose, use or copy the contents of the e-mail. If you are not the person for whom the message was intended, please notify the sender immediately at Bradford Teaching Hospitals NHS Foundation Trust and delete the material from your computer. You must not use the message for any other purpose, nor disclose its contents to any person other than the intended recipient. Bradford Teaching Hospitals NHS Foundation Trust does not accept responsibility for this message and any views or opinions contained in this e-mail are solely those of the author unless expressly stated otherwise.
------ACB discussion List Information--------
This is an open discussion list for the academic and clinical
community working in clinical biochemistry.
Please note, archived messages are public and can be viewed
via the internet. Views expressed are those of the individual and
they are responsible for all message content.
ACB Web Site
http://www.acb.org.uk
List Archives
http://www.jiscmail.ac.uk/lists/ACB-CLIN-CHEM-GEN.html
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