What Factors Can Affect the Accuracy of Blood Glucose Monitors?

Q:
What factors can affect the accuracy of blood glucose monitors?

A:
If you use a blood glucose monitor correctly, the readings are usually accurate. But sometimes you may find the readings seem to be inaccurate. There are many factors that can affect the accuracy of your blood glucose monitor. You can check for reference.

  • Test strip
    If test strips are damaged or outdated, the monitor may give inaccurate reading. Buy some new test strips, and remember to store them in a in a sealed container and then put the container in a cool dry place. Besides, you should insert the test strip into the monitor fully when you’re using.
  • Monitor
    If there is something wrong with the monitor, the blood glucose reading may be inaccurate. Store your monitor in a dry place at room temperature and check it regularly. If the monitor is out of power, replace the batteries.
  • Code number
    If the monitor’s code number can’t match the code number of the test strips, the monitor may give an inaccurate reading. So, make sure the monitor and test strips can match.
  • Testing site location
    If you get a blood sample from other part of the body other than the fingertips, the blood glucose reading may be inaccurate when your blood glucose rises or falls quickly. Get a blood sample from your fingertip and test again if you find the reading seems to be inaccurate.
  • Skin
    Substances on your skin may affect the accuracy of your blood glucose reading. So, wash and dry your hands before pricking.
  • Blood sample
    If you don’t touch enough blood to the test strip, the reading may be affected. Apply a generous drop of blood to the test strip. And once you have applied a drop of blood, don’t add more.
  • Blood cells amount
    The amount of your blood cells can affect the test reading. Make sure you are not dehydrated, and your blood cell count is normal.

Keywords: blood glucose monitor

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.