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Codefree glucose meter readings
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<blockquote data-quote="Oldvatr" data-source="post: 1060221" data-attributes="member: 196898"><p>I have this same problem with the Codefree. it reads between 1.5 mmol/L and 15 mmol/L higher than my Abbott Neo. The high readings I ignore as misreads. They occur about once a fornight, even off the same blood sample. The SD Codefree is calibrated for Plasma, which means ir will always read high by a factor of 1.12 (i.e. 12%) just on calibration alone. Note other new meters (2012 on) are also calibrated for Plasma, such as most recent Accuchek meters, but older meters and it appears at least most Abbott are still calibrated in the old Whole Blood system. Not sure what other meters follow - check with manufacturer</p><p></p><p>Add to this the fact that two meters sampling the same blood drop are permitted to differ by up to +/- 20% and still be considered 'acurate'. Thus if the actual bgl drop is 10 mmol/l, then one meter could say 8mmol/l and the other say 12 mmol/l and both would be correct. Next yearI*) new meters will need to meet a tighter accuracy ~(+/- 15% each)</p><p>EDIT(*) From Mqy 2016.</p></blockquote><p></p>
[QUOTE="Oldvatr, post: 1060221, member: 196898"] I have this same problem with the Codefree. it reads between 1.5 mmol/L and 15 mmol/L higher than my Abbott Neo. The high readings I ignore as misreads. They occur about once a fornight, even off the same blood sample. The SD Codefree is calibrated for Plasma, which means ir will always read high by a factor of 1.12 (i.e. 12%) just on calibration alone. Note other new meters (2012 on) are also calibrated for Plasma, such as most recent Accuchek meters, but older meters and it appears at least most Abbott are still calibrated in the old Whole Blood system. Not sure what other meters follow - check with manufacturer Add to this the fact that two meters sampling the same blood drop are permitted to differ by up to +/- 20% and still be considered 'acurate'. Thus if the actual bgl drop is 10 mmol/l, then one meter could say 8mmol/l and the other say 12 mmol/l and both would be correct. Next yearI*) new meters will need to meet a tighter accuracy ~(+/- 15% each) EDIT(*) From Mqy 2016. [/QUOTE]
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