Open expiration of QC
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Good morning,
I have a question and was curious how others do their monthly QC and if it is a written rule somewhere. Currently I have 9 units that use the Hemochron Signature Elite and they run QC on a lot of cuvettes for patient testing. Lets say for example they run QC on Lot A2DLA014 on Jan 1, 2024. They have another lot they QC on Feb 1, 2024, lets say B3DLA011 for their 30 day QC. Should A2DLA014 also be re-QC'd on Feb 1, 2024 or is that lot still good under QC guidelines as being ok? The manufacturer just says the instrument is QC'd every 30 days and I can't find specifics in the CAP checklists for the re-testing of already QC'd lot numbers. I guess what I am getting at is we have always asked that a cuvette lot be re-certified every 30 days but is that a hard written rule somewhere to back that up or is it above and beyond the minimum guidelines as good lab practice.
I have a question and was curious how others do their monthly QC and if it is a written rule somewhere. Currently I have 9 units that use the Hemochron Signature Elite and they run QC on a lot of cuvettes for patient testing. Lets say for example they run QC on Lot A2DLA014 on Jan 1, 2024. They have another lot they QC on Feb 1, 2024, lets say B3DLA011 for their 30 day QC. Should A2DLA014 also be re-QC'd on Feb 1, 2024 or is that lot still good under QC guidelines as being ok? The manufacturer just says the instrument is QC'd every 30 days and I can't find specifics in the CAP checklists for the re-testing of already QC'd lot numbers. I guess what I am getting at is we have always asked that a cuvette lot be re-certified every 30 days but is that a hard written rule somewhere to back that up or is it above and beyond the minimum guidelines as good lab practice.
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It was my understanding that QC ( levels 1 and 2) was required to be performed on each analyzer every 30 days, regardless of purpose. If the QC was run on an analyzer for new lot/ new shipment verification purposes, it would still satisfy the 30-day QC requirement. My only concern would be running QC outside of your QC-Lock-out schedule, which may get a little hairy if you have a strict schedule for when all departments are required to perform QC on the Hemochron.
Mary Hammel