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Symptons of hypo at 4.8?
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<blockquote data-quote="Oldvatr" data-source="post: 1050085" data-attributes="member: 196898"><p>I have reported this on several other threads now, and I bring it up again here since it may be relevant, and that is to do with how our bgl meters are calibrated. Older meters used to be calibrated for the interstitial fluid that comes out when we finger prick (also called 'whole blood'). Modern meters are being calibrated for plasma levels, so that they correlate better to the venous blood that the HbA1c is measured from.</p><p></p><p>Thus a modern meter will probably read 12% higher than an older meter. Thus if you used to experience hypo symptoms at 4 mmol/L on an older meter, then it will now start at 4.8 mmol/L on a new meter. Conversly, if you used to use a level of 5mmol/L as being your safety limit, then you should be looking at a new limit of 6. This does not include variance due to meter accuracy, but will apply to most currently available meters. This is a calibration change, so all readings will shift by a factor of x1.12</p><p></p><p>Also, not all meters have been changed. i know for a fact that most Accucheck meters have changed since 2011, and my SD Codefree is defintely plasma compatible. However my older Xceed (given to me in 2014) is whole blood, as is the replacement Xceed (received Sep2015), but also my new Neo (received Sep 2015). So it would seem that Abbott meters have not changed.</p><p></p><p>I got a hypo the other day. My Neo read 3.7, my SD on the same blood drop read 6.1. My body said 'Feed me Seymour, Feed me NOW'</p><p></p><p>One important bit of info to take on board, and that is that the NICE ranges and targets and the Newbie information for new starters seem to be both quoting values for older meters, and are 12% lower than the new meters,</p><p>trying a tag to [USER=261525]@DCUK Jessica[/USER] (Meter researcher apparently)</p></blockquote><p></p>
[QUOTE="Oldvatr, post: 1050085, member: 196898"] I have reported this on several other threads now, and I bring it up again here since it may be relevant, and that is to do with how our bgl meters are calibrated. Older meters used to be calibrated for the interstitial fluid that comes out when we finger prick (also called 'whole blood'). Modern meters are being calibrated for plasma levels, so that they correlate better to the venous blood that the HbA1c is measured from. Thus a modern meter will probably read 12% higher than an older meter. Thus if you used to experience hypo symptoms at 4 mmol/L on an older meter, then it will now start at 4.8 mmol/L on a new meter. Conversly, if you used to use a level of 5mmol/L as being your safety limit, then you should be looking at a new limit of 6. This does not include variance due to meter accuracy, but will apply to most currently available meters. This is a calibration change, so all readings will shift by a factor of x1.12 Also, not all meters have been changed. i know for a fact that most Accucheck meters have changed since 2011, and my SD Codefree is defintely plasma compatible. However my older Xceed (given to me in 2014) is whole blood, as is the replacement Xceed (received Sep2015), but also my new Neo (received Sep 2015). So it would seem that Abbott meters have not changed. I got a hypo the other day. My Neo read 3.7, my SD on the same blood drop read 6.1. My body said 'Feed me Seymour, Feed me NOW' One important bit of info to take on board, and that is that the NICE ranges and targets and the Newbie information for new starters seem to be both quoting values for older meters, and are 12% lower than the new meters, trying a tag to [USER=261525]@DCUK Jessica[/USER] (Meter researcher apparently) [/QUOTE]
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