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Good a1c, elveted fasting blood sugar levels

t1990

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4
Hi
How can it be that my a1c is 5.4 but my fasting blood sugar and after meal is elveted? (Fasting and pre meals bg - 118 ml, 130-140 ml after meals)
Its been like that for years (my endo think its mody 2 diabetes).

Does anyone know?
 
bg - 118 ml, 130-140 ml

Welcome to the forum.

Is that ml/L? So, 118ml/1000ml.

Divide 118/1000. You get 0.118. As a percentage it is 100 times that, or 11.8%

Only a guess, but there might be periods of time when your BG goes a lot lower. The HbA1c is a sort of average for the last 8 to 12 weeks (it's a measure of glycated hemoglobin and blood cells only live for 3 months).

I don't know much about MODY but I found this of interest.

As it occurs infrequently, many cases of MODY are initially assumed to be more common forms of diabetes: type 1 if the patient is young and not overweight, type 2 if the patient is overweight, or gestational diabetes if the patient is pregnant. Standard diabetes treatments (insulin for type 1 and gestational diabetes, and oral hypoglycemic agents for type 2) are often initiated before the doctor suspects a more unusual form of diabetes.

Out of interest, are you on any meds?
 
Hi
Thank you for your answer.

Im not taking any meds..

Here is the thing: my fasting bg never go low then 115.
And even 4-5 hours after meal (even low or no carb meal) the sugar comes down to 115-116 ml. The 115 is like my "opening point" (like 80/90 ml for healthy person).
Ive been like that for the past 14 years and no doctor has ever told me that this might be a problem...

My a1c is like that for the past 10 years at least, and ive been eating everything... (a lot of carbs and sugars :).

When i was pragnant i injected insulin (levemir) that helpd only for one "morning". The day after i woke up with 100+.
I started with 4 units and very quickly went up to 40 units. Like my body doesnt react to insulin...

There was one day i woke up with 87 and felt soooo bad. I was shaking and breathless, like my body dosnt used to this level of sugar..

Im really trying to find the answer to all of my questions...
Dont really know what to do...

Ive read a lot of mody 2 and sometimes the only treatment is diet and sport.

Im just worried my a1c dosnt reflact my real blood sugar levels.

Im testing at home with glucometer every day and my fasting bg is always (!) 115-118.

Sorry for the lengh.. maybe there is someone here with some answers...
 
Your HbA1c of 5.4% is equivalent to an average of 108mg/dl so it does appear to be inconsistent with your finger prick readings.

The HbA1c can be unreliable in many people due to non-standard red blood cells. There are many research papers and articles about this, and various reasons why people have non-standard red blood cells. The main one is that the HbA1c relies on us all having RBC that live the standard 120 days, but many people have longer lived ones and many others have shorter lived ones, so in those people the HbA1c can be inaccurate. Additionally, other conditions such as anaemia can cause inaccuracies.

I know nothing about MODY so can't advise with that.

http://www.pathology.leedsth.nhs.uk/pathology/Portals/0/PDFs/BP-2013-01 Diabetes.pdf

http://www.diabetes.co.uk/forum/thr...due-to-red-blood-cell-age-variability.110793/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2581997/

http://www.ngsp.org/factors.asp

http://www.gpnotebook.co.uk/simplepage.cfm?ID=x20070614192625295600&linkID=70250&cook=yes
 
Wow! Thats all new to me. So how can a doctor diagnose diabetes based on a1c test?
Or rely on this test when a diabetic person take it to track his bg?

Thank you for the articles.
 
Wow! Thats all new to me. So how can a doctor diagnose diabetes based on a1c test?
Or rely on this test when a diabetic person take it to track his bg?

Thank you for the articles.

There are other tests a doctor can use to diagnose T2. The oral glucose tolerance test is one often used (and you can do this at home if you are so inclined), and another test called the Fructosamine test. (hardly ever used in the UK). The OGTT is useful because it tests the reaction to a measured shot of pure glucose on an empty stomach and is therefore equivalent to a post-meal test.
 
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