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What can cause a blood glucose meter for diabetes to give a bad reading?

Experts testing meters in the lab setting found them accurate and precise. That's the good news. The bad: meter mistakes most often come from the person doing the blood checks. For good results you need to do each step correctly. Here are some other things that can cause your meter to give a poor reading:
  • Dirty meter
  • Meter or strip that's not at room temperature
  • Outdated test strip
  • Meter not calibrated (set up for) the current box of test strips
  • Blood drop that is too small
Ask your health care team to check your skills at least once a year. Error can creep in over time.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.