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Does the FreeStyle Libre system require calibration using a blood sample?

No, the FreeStyle Libre system does not require finger prick calibration. However, a finger prick test using a blood glucose meter is required in the following situations:

  • When you see the “Check Blood Glucose” symbol, you must check your blood glucose with a blood glucose meter before making any treatment decisions 
  • When your glucose is changing quickly
  • If you get a “Low Glucose” or “Glucose Going Low” message
  • If you do not see a Current Glucose number or Glucose Trend Arrow
  • If you have symptoms that do not match the sensor glucose reading or think that your reading may be inaccurate. If you have symptoms that do not match your glucose readings, consult your healthcare professional
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IMPORTANT: The information provided is not intended to be used for medical diagnosis or treatment, or as a substitute for professional medical advice. Refer to package insert/label accompanying your product for detailed instructions and indications for use. FreeStyle and related brand marks are trademarks of Abbott in various jurisdictions. The FreeStyle Libre 2 flash glucose monitoring system is indicated for measuring interstitial fluid glucose levels in people aged 4 years and older with diabetes mellitus. Always read and follow the label/insert. The FreeStyle Libre flash glucose monitoring system is indicated for measuring interstitial fluid glucose levels in adults aged 18 years and older with diabetes mellitus. Always read and follow the label/insert.