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When used correctly, blood glucose monitors — small devices that measure and display your blood sugar level — are usually accurate. But occasionally they may be incorrect.
Consider these factors that affect meter accuracy and the steps to resolve or prevent the problem:
The following quality control tests can assure you that your meter is working properly:
Test using a control solution. Follow your normal blood-testing procedure, but use a liquid control solution instead of blood. These solutions usually come with your monitor and are available at most drugstores and pharmacies. Follow package directions.
Use liquid control solutions every time you open a new container of test strips, and occasionally as you use them. You generally should also use liquid control solutions if you drop your blood glucose meter, or whenever you get unusual results.
If your meter isn't working properly, contact the manufacturer of your meter and test strips.
M. Regina Castro, M.D.
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