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Re: [IP] A1c question?
- Subject: Re: [IP] A1c question?
- From: John Neale <email @ redacted>
- Date: Thu, 15 Oct 1998 19:34:34 +0200
> > If over a period of time someone ran say a bg of 100 half the time
> > and a bg of 120 the other half of the time, would their A1c be the
> > equivalent of bg's of 110 ? In other words is your A1c and average
> > of your highs and lows?
Waddaya mean Michael? You gave us your endo's lovely formula which
seemed linear to me. It is roughly the average of your bg's. A lot of
lows will cancel out a lot of highs. If you measure your bg's in mmol/l
(the Canadian/British way), then the HbA1c just happens to give a rough
guide to your average bg's: so if you are 10 mmol/l (180 mg/dl) most of
the time, your Hba1c might be around 10%, and if you are 5 (90) most of
the time, your bg might be around 5%.
A few years ago my clinic were worried my HbA1c was a bit low (5.9%) and
thought I might be having too many hypos (which brings it down). This
probably was the case: I was having plenty of long, slow nighttime hypos
which I came out of without actually waking. I would just wake with a
rebounding high, combined with a dawn effect, and then try to raise my
overnight NPH to correct this, and just get worse hypos... the crudeness
of overnight insulin...
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Insulin-Pumpers website http://www.bizsystems.com/Diabetes/