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Hi Bharat, We've had no problems -but see attached field safety notice. IL have responded by giving NHS GG&C IL Gem 3000s with potassium only for those areas that require it.(disabling the K+ on the GEM 4000s) An e-mail was aslo rec'd on 13/06 as follows - please fine the latest update with regards K+ on GEM 4000. Two areas I will cover here software and root cause. Software Version 2.1.4 went into 7 US sites with VPN connection to R and D Bedford Friday, 10th June. By Thursday, 16th June a decision will be made as to a limited release. All being well the software will be with the UK team week beginning 20th June. The software is a patch and there is no server upgrade. The software is very conservative and will disable the K+ sensor before low result can be produced. With the in house test we have experienced a 50% failure of K+ due to the software patch. Our suggestion for those sites that want K+ on the GEM 4000 is to leave GEM 3000 on site, consequently any failure will not mean additional pack changes. The software is a short term fix the long term is root cause identification and correction. Root Cause - R and D can now reproduce the issue and are close to root cause of failure. The outer K+ membrane, over time, becomes cloudy. A crystal structure is forming a film over the membrane, this causes a resistance layer and subsequent slow response. Investigations are now focused on the five components that make up the outer K+ membrane. Forecast is now for root cause resolution by August this year. I will be in contact towards the end of this week with regards software release and any other news. However, should you have any questions please call me? Best Regards David David Wheeler Critical Care Clinical Chemistry Business Manager Instrumentation Laboratory (UK) Ltd Phone: +44 1925 810141 Fax: +44 1925 826708 email: [log in to unmask] Charlie Houston Senior Specialist Biomedical Scientist NHS Greater Glasgow & Clyde Biochemistry Department Inverclyde Royal Hospital <http://maps.google.co.uk/maps?hl=en&ie=UTF8&q=Inverclyde+Royal+Hospital&fb=1&gl=uk&hq=Inverclyde+Royal+Hospital&hnear=Inverclyde+Royal+Hospital&view=map&cid=17605999378638033069&iwloc=A&ved=0CBwQpQY&sa=X&ei=hlc4TZfFE4zyOdHNpbwO>Greenock, PA16 0XN Email:[log in to unmask]<mailto:[log in to unmask]> Regards Charlie <http://uk.linkedin.com/pub/charlie-houston/18/756/33a> W. Edwards Deming. “Every system is perfectly designed to get the results it gets.” ________________________________________ From: Clinical biochemistry discussion list [[log in to unmask]] On Behalf Of Patel Bharat (RWG) West Hertfordshire TR [[log in to unmask]] Sent: 16 June 2011 15:56 To: [log in to unmask] Subject: Gem 4000 users Any lab having problems with K on Gem 4000. Bharat West Hertfordshire Hospitals NHS Trust is applying to become a Foundation Trust and you can be part of this exciting change. Become a Member Make a Difference! Contact Kelly Hickman on 01923 436280, email: [log in to unmask], or visit our website: <http://www.westhertshospitals.nhs.uk/ft> ********************************************************************************************* The information contained in this e-mail may be subject to public disclosure under the NHS Code of Openness or the Freedom of Information Act 2000. 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