Glucose meter accuracy is one of the most important factors that determine the success of your diabetes management program. In order to understand which are the most accurate glucose meters, we need to understand exactly what determines the accuracy of a glucose meter. There are a number of guidelines laid out by the ISO (International Organization of Standardization) pertaining to the accuracy of glucose meters. Typically, in order to pass the tests, any blood glucose meter should be within 20% range of clinical accuracy and should remain in this range at least 95% of the times. However, the 20% range of variation is still a wide one and the most accurate blood glucose meter would be one that is nearest to 0% variation.
Having understood how the accuracy of a blood glucose meter is determined, we must look at the biggest problem concerning the determination of the most accurate glucose meter: the accuracy of a glucose meter can vary from test to test. This poses a lot of problems in determining the most accurate glucose meter. A glucose meter performing at 98% accuracy under certain conditions might fall down to a 90% accuracy rate. A better way to figure out the most accurate glucose meter is to look at the testing accuracy of the meter over a couple of years and average it out. However, this can be tricky with hoards of glucose meters in the market. Thus, the simplest way to ensure that you have the most accurate glucose meter in your hand, is to read real-time reviews and testimonials of actual users and test several glucose meters before figuring out the best fit for your body type.
So what is it that affects the accuracy of glucose meters? For starters, the size of the blood sample and the time a glucose meter takes to analyze the sample are the biggest factors affecting the accuracy of a particular glucose meter. As a rule of the thumb, the larger the size of the testing blood sample, the more accurate the glucose meter. However, a larger sample size means that the patient has to undergo more pain. Thus, in a bid to reduce the size of the sample required, glucometer manufacturers trade off accuracy by a few percent points. Similarly, the longer it takes for the glucose meter to analyze the blood sample, the more accurate are the results. Unfortunately, most glucose meters market their products on a short testing time. Thus, in a bid to launch a more “market friendly” product, glucose meter manufacturers end up trading accuracy off with ease of usage. The most accurate glucose meter would, therefore, be the one that requires the largest blood sample and takes the longest time to render results. While this premise might not sound exciting to most patients, those who want the results to be dead-accurate, should follow this premise to the core.
Thus, the only way to get your hands on the most accurate glucose meter is by researching about glucometer accuracy. The more you know, the better you get at analyzing the test data and the veracity of the accuracy of different glucometers.
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