At first glance, test strips used to monitor blood glucose levels all appear pretty much the same. Their appearance is similar and they’re used for the same purpose. They’re all created in much the same way, though each manufacturer utilizes its own process in the creation of the strips. However, each manufacturer incorporates small, proprietary differences that ensure it’s only compatible with the company’s brand of meter.
Each test strip is a modern miracle of engineering that enables individuals to monitor their glucose levels and manage their diabetes. The test strip and the meter must work perfectly together to achieve accurate readings, making the meter equally important. There are no universal test strips that will work with every meter.
The National Institute of Health conducted research on the accuracy of 17 commercially available meters/test strips and discovered that some are more accurate when detecting high glucose levels, some were better at identifying low glucose levels, and that discrepancies in accuracy levels existed between all brands tested. Similar results were confirmed by the American Diabetes Association.
The Food and Drug Administration relies solely on data provided by test strip/meter manufacturers for accuracy information. One of the most significant reasons for discrepancies was environmental factors. Exposure to excessive temperatures and humidity disrupts the ability of the test strips to function properly. Expired test strips also demonstrate inaccurate readings.
It’s important to note that there are a wide variety of factors introduced by the tester that will affect at-home accuracy. Prescription and over-the-counter medications other than those prescribed for diabetes can affect readings. Dirt, lotions and other substances on the hands, an insufficient blood sample, and dehydration will all affect the accuracy of the reading
Diabetic test strips/meters do demonstrate small discrepancies, but they’re the first and best line of defense for monitoring glucose levels. Even the most conscientious diabetic must test their glucose levels if they hope to manage their disease. Ultimately, it doesn’t matter what brand of meter and test strip combination anyone uses. The important thing is that they’re used and the test strips haven’t expired.
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