I'm sorry you haven't had a reply Nancy..maybe it is because we all suffer these unexplained highs from time to time. Only thing I can think of is whether you had touched something beforehand that could have left a residue which was picked up by your meter.
I know this has happened to me on occasions.
Is it still happening..?? Is it a new meter..?? Sometimes new meters require slightly different techniques ...
Fingers crossed the problem has gone away....
Cheers...Eve

Well, personally... if I recall correctly, values aren't supposed to vary more than 20% or the meter is suspect. (Many meters shoot for about a 10% variation at most.)

If there's more than 20% difference between the tests, I'd push them to send you a new meter... have read on diabetes forums that many makers will.

Have also heard that if you do retest quickly like you did, one is supposed to do it on a different finger.

I think one way to check the machine is to get 2 test strips ready, draw one pretty big drop of blood on your finger, touch it to one and see what the result is, then pull that test strip out and insert the other and test w/the same big droplet. (This is easier to do with some of the more modern testing devices that require only a tiny amount of blood, of course.)

I think there may be a discussion, if I recall correctly, about meter stuff like this at the forum at www.diabetes.about.com

I've had my blood sugar do the same thing. I once saw a graph of blood sugar taken once every minute on a diabetic and it spiked and dropped all over the place, but overall made a general rise and fall in response to food. Its just not a smoothe line, but jumps around quite a bit and therefore I think of it as giving me a general idea of where my blood sugar is. I've tested my own a minute a part and had 10 point differences. Especially when I'm under some kind of stress causing them to be higher than usual. Anyway, I hope that helps and good luck!

Well, I've got the same problem with my old meter, my Bg readings were all over the place, even taken few minutes apart. Usually, it's a sign that the instrument has drifted from the calibrated range. So, I'v called the manufacturer and they said that most meters are calibrated to+/- 20%. I wasn't satisfied since my readings were outside this range, so they offered to replace my meter with new (calibrated) one. I have OneTouch ULtra by LifeScan. They have really good customer support.
Since then all my readings taken within few minutes are never more than 5 points apart. Sounds like your meter needs to be recalibrated.
Regards,
Dina

Hi and thanks for all your responses! My blood sugar and meter are now both behaving...after 2 boxes of strips.

But I really appreciate all the responses!

nancy