Use of different meters

By RLip Latest Reply 2009-06-17 18:56:59 -0500
Started 2009-05-06 21:33:06 -0500

When I was diagnosed I had gotten the One Touch Ultra 2 and when I went to the VA they gave me an ACCU-CHEK Advantage. I use the One Touch once every day and the Accu-Chek once every other day. The readings are different by 5 to 10 mg/dL is this normal using different meters? I know it is silly, but I do it!

15 replies

dj7110 2009-06-15 23:52:01 -0500 Report

I have 3 different meters myself.. but only strips that aren't outdated for 2 of them. started out with an accu check. than went to optium. But most recently started useing an eclipse. The eclipse one I find much better as it has alrms for reminders and icons to keep track if readings where taken with insulin, before or after meal, a meter test, runs averages weekly, biweekly, & monthly for trends. as well as takes higher readings so i know where I'm at when I'm running over 500. David

2009-06-15 21:36:24 -0500 Report

I'm wondering WHY you are using 2 different meters!

Sarguillo 2009-06-16 18:17:44 -0500 Report

Myself, One is my main meter that I keep at home in my kit, the other is a slim ultra mini that I carry with me at all times. I rather not keep a larger kit when a small one with a small meter will work just fine.

2009-06-16 20:47:54 -0500 Report

I can really use one meter, being on the pump, my meter radios my pump with my result.

I would think if you are on a sliding insulin scale, two meters with different readings wouldn't be good.

shellyj 2009-06-15 19:24:10 -0500 Report

Yes I do have two meter too a contour that is my main meter and aviva that I use ever other day and both give the same number with a point or 2 have you look in to battery as some time if it needs to be change it can give you a lower or very high reading

shellyj 2009-06-17 18:56:59 -0500 Report

I use the 2 meter as one is always at home and my other one I take to work I keep it in my bag so when I am at work I can test and I won't forget too

LadyDi - 26259Miller
LadyDi - 26259Miller 2009-06-08 05:33:46 -0500 Report

Yes, doctors are very aware of this. Also, you will get differing numbers testing on different fingers - even on the same hand. Not a precise science, but helps us to know about where we are. You will notice, by the way, that the paperwork that comes with all meters tell you that the results you get are not 100% accurate. It is still important to test, so don't feel you're wasting your time and money.

Sarguillo 2009-05-07 13:55:17 -0500 Report

Yes, you will get different readings. I use a Mini Ultra and An Ultra2 since they both use the same strips and if I test on one meter, then test with the other using the same blood sample (one prick, bigger blood sample) I can get different readings. Its funny, it can go either way, higher or lower with either meter.

kdroberts 2009-05-07 07:43:51 -0500 Report

You will probably get that difference if you tested twice with the same meter. Home meters are not really accurate and are not really designed to be accurate.

eryannasGG 2009-06-08 01:56:32 -0500 Report

You are kidding aren't you? Why do we keep using them then?

GabbyPA 2009-06-08 07:30:41 -0500 Report

There are allowable tolerances and this is one reason that many doctors use the A1c for the "standard".
We use them to keep tabs on what is happening in our bodies. If your meter tells you that you have a 90 before breakfast and a 130 after, then you know about how your body is reacting. If you are really a 85 before and a 125 after, that difference is still in the allowable tolerances. It is your guide. What you want to see is what your rise is. This is where we can see what foods change our levels.
Is it 100% accurate? No, but either is your scale. You weigh one thing at home and another at the doctor's office and if you are brave, you weigh something different at the grocery store scale. BUT they all give you a close enough number to know what you weigh. It really is the same idea.

All I am saying is that we use them as a tool to tell us what is going on inside. Type 1's have to depend on those readings far more than Type 2's unless they are on insulin. So keep using your meters.

Everytime I go into my doctor appointment, they test me. Then I test myself with my meter to see if I am close to their numbers and I usually am. So I am comfortable with the accuracy of my meter.

kdroberts 2009-06-16 10:03:03 -0500 Report

No. The standard is within 20% of your actual blood sugar if your blood sugar is over 75 or within 15 points if you are under 75.

The reason they are not designed to be very accurate is because it would make them very expensive and not very user friendly. They have to make a trade, reduce the accuracy a bit which increases the portability and usability and decrease the price.

The reason we use them is to gain a general picture of what's going on, track trends, see what foods do and generally experiment. A lab will give you the accuracy which is why you should get blood work done regularly.

You can buy a very accurate meter but it requires a lot of blood (5 times as much as OneTouch Ultra and Beyer meters, 8 times as much as accuchek aviva and 16 times as much as freestyle meters), can take up to 5 minutes to give you a result, is about1.5 inches thick, 6.5 inches long and 3.5 inches wide, weighs close to a pound, costs several hundred dollars and about $5 a test.

2009-05-06 21:59:23 -0500 Report

Hi there,
Yes that can be normal for different meters to record different readings even if you use the same blood sample.


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