Re: A1c versus fasting glucose readings?

nobody wrote:
On 2008-07-30, Trinkwasser <spam@xxxxxxxxxxxxxxxxxxx> wrote:
On Mon, 28 Jul 2008 09:17:36 -0700, "Michelle C"
<bookbug_35@xxxxxxxxx> wrote:

"nobody" <annonymous@xxxxxxxx> wrote in message news:VLmdnYfU6YtMdxDVnZ2dnUVZ_qDinZ2d@xxxxxxxxxxxxxx
I realize that the hbaic test is for checking the management of one's
sugar for the past 2 or 3 months & that the 12 hour fasting blood test
for glucose indicates diabetes or "pre-diabets".

On a couple occasions, my fasting glucose readings was around 120-124,
so the doctor had me do another test. On the same sampling, the fasting
glucose remained at the 120+ level while the hgba1c was at 4.6% on both
occassions.

Found a table relating a1c & glucose that tells me the a1c equivelant
is about 85. I don't do any overt diet management for diabetes & am
only concerned as my current doctor is wanted me to control my
"diabetes".

The question is how valid is the 12 hour fasting glucose test? Or is
my digestive tract a bit "slow" as I did have a glass of wine with
dinner & ice cream for desert prior to doing the fasting & testing..

puzzled...
Your hgba1c can be perfectly normal, while some of your BG numbers go into diabetic territory--which your FBG is doing. The reason? Besides the fact that your red blood cell turnover may not be typical, often people who have high BGs also experience low (or lowish) BGs, resulting in a normal average as demonstrated by the hgba1c. That is why it is NOT used for diabetic diagnosis. However, your FBG is diagnostic. Your doctor is not wrong.

While for a few people, the FBG is the first glucose-related test to become abnormal, for a majority of people, their post-prandial (after eating) BGs become abnormal first. To see exactly what your BGs are doing get a glucometer. At one hour after a meal, your BG should be less than 140; at 2 hours less than 120.

Check out these websites:
http://www.alt-support-diabetes.org/newlydiagnosed.htm
http://www.phlaunt.com/diabetes/
Yes checking the postprandials is essential, my FBG is still "normal"
but my postprandials ran from 60 to 210: because (presumably) the lows
counterracted the highs my A1c was only 5.3

Curiously when I got my postprandials under better control my A1c was
still 5.3, and when I got them under better control still it went up
to 5.6.

A1c correlates well with average BG when it's high but poorly when BG
is generally low and especially when it's particularly uneven.

Thanks everyone. Guess I'll go to Walmart to get a meter, brrrrr. Didn't
see a glucose meter at the hmo pharmacy when I went to get a vision check.

Now have been told that I have cataracts &, so far, the web pages say that
cataracts can be caused by diabetes.

Looks like my 72 yr old body is deteriating faster & faster...
more likely the cataracts are caused by aging, rather than diabetes

type 1's who are diagnosed young will/can develop cataracts at a young age

cataracts are more common in those of us over 50, diabetes or not

--
kate
type 1 since 1987
www.diabetic-chat.org
www.diabetic-talk.org
http://www.diabetes-support.org.uk/newly%20diagnosed.html
.

Relevant Pages

  • Re: A1c versus fasting glucose readings?
    ... On a couple occasions, my fasting glucose readings was around 120-124, ... so the doctor had me do another test. ... I don't do any overt diet management for diabetes & am ...
    (alt.support.diabetes)
  • Re: A1c versus fasting glucose readings?
    ... On a couple occasions, my fasting glucose readings was around 120-124, ... so the doctor had me do another test. ... I don't do any overt diet management for diabetes & am ...
    (alt.support.diabetes)
  • Re: A1c versus fasting glucose readings?
    ... On a couple occasions, my fasting glucose readings was around 120-124, ... so the doctor had me do another test. ... I don't do any overt diet management for diabetes & am ...
    (alt.support.diabetes)
  • Re: A1c versus fasting glucose readings?
    ... On a couple occasions, my fasting glucose readings was around 120-124, ... so the doctor had me do another test. ... I don't do any overt diet management for diabetes & am ...
    (alt.support.diabetes)
  • Re: What cxercise, vitamins, or food needed for diabetes/cardio risk individual?
    ... untreated Type 2 diabetes can cause you ... Glycation is the non-enzymic binding of glucose molecules to other molecules ... Animals fed chromium had lower fasting glucose and insulin levels and ... McCarty MF in Med Hypotheses 1994 Oct;43:253-65 PMID: ...
    (sci.med.cardiology)