Glucose meter average

By haoleboy Latest Reply 2014-11-14 11:00:27 -0600
Started 2014-11-06 16:59:41 -0600

Do you think that the averages on your glucometer are meaningful or even helpful?
In my experience they have little to no correlation to my "average" as determined by my quarterly HbA1c tests.
Your experience?


14 replies

suecsdy 2014-11-14 11:00:27 -0600 Report

Sometimes I will test more than once at any given time because I don' think the first read was accurate. In my opinion that would skew the average meter read , so no, I don't use that function as a reliable feature.

roxanne bohnnow
roxanne bohnnow 2014-11-12 15:19:04 -0600 Report

I found out that going by your meter average will not give you an accurate
reading at all. Every meter brand gives a different reading, and this goes for your BG readings as well. I have two new meters. One is an Ultra the other is a Contour. While one gives me a reading of BG at 134 the other gives me a reading of 151. I am not going to say which is which. So if you want an accurate A1C then leave it up to the Lab where you get your blood work done and don't even bother with the average function on your meter. They are never accurate anyway.

Chopstix 2014-11-08 17:13:53 -0600 Report

Being a truck driver you have enough numbers to deal with on a daily basis which includes weights, hours of service, miles, appointment times. I just monitor so I'll know if I'm doing something I shouldn't be doing or what I'm trying new is working or not working. After all I did manage to drop over 50 pounds of weight…

haoleboy 2014-11-08 17:09:16 -0600 Report

case in point …
my meters 30 day average over the past three months has been 108-111 (5.2-5.3 A1c); I just got the results of Tuesdays A1c test and it was 5.8 which would be a 129 average mg/dL blood glucose level.
(and my meter appears to be working just fine as I checked it against the labs bgl at the time of the test)

Pegsy 2014-11-13 16:02:08 -0600 Report

I don't know if this is helpful or not but my recent experience has been a glucose average of 124-129 over 3 months. I did an A1c home test and the result was 6.1 which is pretty consistent with my meter results. But when my doctor ran an A1c about 1 week later, it was 6.3. I was disappointed as my goal is to get it below 6 if I possibly can.

Steve, how long have you been comparing your A1c labs with your meter readings? I'm just curious if the higher A1c has been consistently higher for you. If that turns out to be the case for me, I will probably stop testing so much. It's expensive and perhaps isn't giving me as clear a picture of how I'm doing as I was hoping.

haoleboy 2014-11-13 16:11:23 -0600 Report

last couple A1c tests I did the comparison. I'm happy with a sub 6 Aic (for the past 2 years), although lower would make me happier, and I am also going to stop testing on a regular basis since I never seem to be high or low and the A1c really is the only test that matters.
oh … if I should happen to try and add a new food to my diet I'll do some testing then … but I don't see that happening .


Type1Lou 2014-11-07 08:52:34 -0600 Report

Another factor occurred to me. Could the daily number of times you check your BG with a meter make a difference in how closely the A1c and meter averages track? I test, on average, 8 times a day.

GabbyPA 2014-11-07 05:51:11 -0600 Report

An average is an estimate in the best of worlds. There are so many things going on inside every second, it's hard to base things on meter readings. They are just a snap shot of things that go on.

Donating or receiving blood adjusts your A1c from your meter readings.
Unexpected highs and lows will also affect your A1c reading when you don't see them on your meter.

It is a great guide, and yes, if it is way off from what your A1c says it should be, then I would be looking more closely at what is happening between your testing times.

Pegsy 2014-11-06 20:29:56 -0600 Report

According to the average on my meter my last A1c should have been 6.1 but was actually 6.3. Not sure what to make of that. This was the first time I compared the two. I'll see what happens next time.

jayabee52 2014-11-06 20:23:28 -0600 Report

Howdy Steve
I nave never used the average BG readings as it has no relationship to the A1c readings as the A1c is 24 hr BG reading for 90 days skewed toward the last two weeks.

The average on your meter is missing a number of hours of data which comprises the A1c. So no I don't use it.

James .

calayx 2014-11-07 02:24:56 -0600 Report

Does this mean that you don't use a meter at all?

jayabee52 2014-11-13 23:15:05 -0600 Report

Oh, you may have misunderstood because I was less than clear, Calayx,

i don't use the average BG reading function on my meter. I still use my meter, of course. That would be like trying to drive without being able to see out the windshield.


Type1Lou 2014-11-06 19:05:36 -0600 Report

I've never used the meter average but I do download my insulin pump readings (which are obtained from my meter) into Medtronic's Carelink Management system. My BG averages have correlated pretty closely. My last HBA1c was 6.6 and my average BG was somewhere in the 130's. I had blood drawn on Wednesday for a new HbA1c and I think I've slipped some…anticipating the results.