i-STAT BUN Reportable Range
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How do you all verify the upper limit of 140mg/dL for BUN? I can't find any LVM material that comes close. Abbott goes up to 114mg/dL and Eurotrol only goes up to 94mg/dL. Now that the CHEM 8 is moderately complex we are going to have to verify the reportable ranges every 6 months.
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Idea is to stop reporting at 110? In other words shorten your reportable range.
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This is one of my biggest complaints with POC Manufacturer's. They give you an AMR that is wider than the material can validate. I have had to adjust many of the AMR limits on several POC platforms. Just make sure that you have a policy stating the criteria used to validate the values. i.e. CLIA tEa limits or a set percentage (I use a set percentage, much easier than tEa).
This is one of my biggest complaints with POC Manufacturer's. They give you an AMR that is wider than the material can validate. I have had to adjust many of the AMR limits on several POC platforms. Just make sure that you have a policy stating the criteria used to validate the values. i.e. CLIA tEa limits or a set percentage (I use a set percentage, much easier than tEa).
We dropped the top of our range down to 125 for that reason. With the calibrators you can then get within 10-15% of that which is acceptable if your medical director says so.