A1c

[heartfluttersflyawayplz]

ok heres a strange questions, my dr says am pre-diabete so i have been taking my sugar for weeks, in the mornings its between118-137 after eating it can be 130-160. so i had a a1c and its 5.2 which is awesome, but why is my sugar always over 100 in mornings after fasting.and crazy after meals. and when i go to bed its 103 wake up its higher. dont understand that any ideals and can you be a diabete with a great a1c

[asok475]

Keep on losing weight. Watch those carbs. Exercise if you are able. Good for you.

[heartfluttersflyawayplz]

this was doneat my dr office she took little blood in a strange looking thing gave me results in mins. so maybe its not right?   am still testing at home this morning after all night it was 111 not bad.  has been lots higher. still eating good and lossing weight weight so far 15 pds 10 more to go to my goal.   my dr wants to to go to a diabete class about food. even thought my mom/sister are both one.   she says if i dont stay on a low card diet and watch what i do/eat i will become one. thanks for all the in put it has helped me so much. Barbara

[asok475]

I agree again. Nothing takes the place of daily testing at home. I test daily alternating between FPG and PPG. I eat three meals a day and test at the same time religiously. My doctor didn't feel it necessary to test more than once a day. This gives me average glucose over the past 120,90,60,30 or any period. I don't think of this as estimated but actual average glucose. So the formula noted above gives an indicated A1C. At my last test my lab A1C was 6.3% compared to my indicated A1C of  6.5%. I'm sure that if I splurged, my indicated A1C over the past 30 days would show it. It certainly makes sense that if an actual A1C can give an estimated average glucose then an actual average glucose can give an indicated (estimated) A1C. but not to take the place of a lab test.

I keep track of my readings on a EXCEL spreadsheet complete with averages, median, maximums and minimums and simple graphs. I would gladly share this with you or any other diabetic readings this.

[WaveRider]

Your prior post stated "Just averaging you lows and highs, your eAG is  124-148 which working backward yields an indicated A1C of 5.9% to 8.2%." Try not too confuse mg/dl results with mmol/l, nor can you take lows and highs to obtain an eAG. Using the formula I posted you will obtain an 103 mg/dl eAG. Using yours one would obtain an eAG value in mmol/l.

The eAG is not a lab test, never has been and never will be. It is a formula that takes an A1c lab test result and converts into an estimated daily glucose average. The key word here is "estimated".
All the eAG is trying to do is make the patient aware of their "estimated daily glucose". Currently nothing takes the place of multiple daily testing at home.

Perhaps medical science will soon develop a better test than the A1c. The A1c in itself is not bullet proof. Blood glucose levels in the preceding 30 days contribute substantially more to the level of A1C than do blood glucose levels 90 to 120 days earlier. This explains why the level of A1C can increase or decrease relatively quickly with large changes in blood glucose; it does not take 120 days to detect a clinically meaningful change in A1C following a clinically significant change in average blood glucose. In other words, if in the last 30 days one goes splurging on high carb starchy foods, drinks sugary cocktails because just one won’t hurt, the A1c will reflect a higher reading even though the patient adhered to a strict diabetic lifestyle 60-120 days prior.

[asok475]

I  agree. But if

(1.583 x A1C) -2,52= estimated average glucose then

(estimated average glucose+2.52)/1.583= an indicated A1C. level.

I am not saying this is a substitute for a lab test but only an indication of what the A1C might be if the eAG is reliable.


Your further thoughts are appreciated

[WaveRider]

asok - The 103 mg/dl was arrived by using both the ADA [American Diabetes Association] online eAG calculator AND verified with the hand formula of 28.7 X 5.2 – 46.7 = 102.54 mg/dl aka ADAG [A1c Derived Average Glucose] formula.

The eAG only can only be used to show the relationship from A1c to eAG. It takes the A1c result and converts that into estimated daily glucose levels in mg/dl or mmol/l [1.583 x A1c - 2.52 = mmol/l]. It is not an average of low and high glucose readings.

[Super_sally888]

Also, if you are anaemic then you A1C will be low, even if your blood sugars are high.

[asok475]

A 5.2% A1C is equivalent to an estimated average glucose of 103 mg/dl. I would question that reading. Just averaging you lows and highs, your eAG is  124-148 which working backward yields an indicated A1C of 5.9% to 8.2%. I would suggest getting a new A1C test at an approved lab.