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Re: Re [IPk] Retest results



 The higher the reading, the greater the possible error range (in terms of
absolute numbers). Which is good, because it's less crucial to be exact the
higher it gets.
Di


Sent from my iPad

> On 15 Jan 2014, at 23:09, johnfarmitage <email @ redacted> wrote:
> 
> That's exactly what I see ingrid, an immediate retest always shows a lower
> reading.
> 
> 
> Sent from Samsung Mobile
> 
> -------- Original message --------
> From: Ingrid Glass <email @ redacted> 
> Date:  
> To: insulinpumpers forum <email @ redacted> 
> Subject: Re [IPk] Retest results 
> 
> Hi John, a couple of months' ago I was out with my natural history group,
> always an unknown quantity regarding how active/sedentary the day will be and
> how much energy I'll have to participate & for how long, and following the
> usual pre-emptive big basal reduction + extra carbs for brekkies, horror of
> horrors it was an extremely sedentary morning. I tested 1/2 hour before lunch
> and I was 19.8. I thought I'd better retest before shoving a large correction
> dose in, and it was 15.2! As a result of this, I went through a period of
 > regular double testing to see how often the discrepancy was outside of the
20%
> 'allowable' range, and discovered far too frequently it was significantly off
 > (> 20%) when outside of normal readings (say 4 - 8mmol/L). I started to
really
> distrust my meter!! I have & use 3 of them - One Touch UltraEasy - so it
> wasn't a one-off dud meter. But when I asked my DSN recently, she actually
> assured me that this is one of the most accurate & reliable meters, they use
> it for 'all our pregnant ladies'. I've gone back to single testing and a bit
> of forced artificial confidence (!) after DSN chat, but any highs now & I
> double test.
> 
> Ingrid
> 
> 
> 
> Date: Wed, 15 Jan 2014 09:15:03 +0000
> From: johnfarmitage <email @ redacted>
> Subject: [IPk] Retest results.
> 
> I occasionally retest if I have an unexpected high BG result and have
> noticed
> that it always gives a lower reading of at least 1 mmol/L the second time. It
> must be a meter operation thing, but can anyone explain this? (Before you all
> try, let me buy some drug company shares:) )
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