From Everett , Washington, USA:
I have two meters made by the same company (call them Meter A and Meter B). I ran blood tests using both meters and found a great difference on the high end. Could there be something wrong with my meters?
Here are the results of my comparison:
Date Meter A Meter B 12/1 440 348 12/1 379 294 12/2 384 362 12/2 392 313 12/3 498 379 12/3 508 409 12/4 427 379 12/4 258 212
I ran tests on both meters and the meters were in range.
I would talk to the manufacturer about your concern to see what their comments are. In general, the home meters are not as accurate in the extreme ranges (highs and lows). They are also not as accurate as a laboratory blood glucose. Be careful because some meters are calibrated to venous blood and others are not; this can give another 15% or so difference. Also there is a small difference in the blood samples which are squeezed out when compared to the first drop. That plus the built-in error from meter to meter, as well as user error, can lead to differences in numbers you get. My personal opinion about home meters is that they tell you if you are low, in range, high, or very high.
Original posting 6 Mar 1999
Posted to Blood Tests and Insulin Injections
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