Medical Pharmacies is committed to national safety during the COVID-19 pandemic. Learn More

Flash Glucose Monitoring FAQ | Pharmacy QI | Nov 2020

November 2020 | Practical Tips for Quality Improvement | View PDF

1. CAN ANYONE USE A FLASH GLUCOSE MONITORING SYSTEM (I.E., FREESTYLE LIBRE)?

The FreeStyle Libre Flash Glucose Monitoring System is indicated for use in adults aged 18 years and older. It may not be appropriate for residents who:

  • Are chronically dehydrated due to low flu-id intake (may result in inaccurate results)
  • Require mechanical lift with sling
  • Have pressure ulcers (if they have to lie on their side for lengthy dressing changes)
  • Have skin conditions or poor skin integrity
  • Have frequent episodes of incontinence
  • Take Ascorbic Acid (Vitamin C) or ASA (may falsely raise or lower the sensor readings)
  • Would remove meters inappropriately (e.g., residents with dementia)
2. CAN USERS BATHE, SHOWER, SWIM, OR EXERCISE WHILE WEARING A SENSOR?

Yes. The sensor can be worn while bathing, showering, swimming, or exercising. The sensor should not be taken below 1 meter of water (3 feet) and should not be submerged in water for more than 30 minutes.

3. HOW DO YOU REMOVE THE SENSOR?
  • Pull up the edge of adhesive. Slowly peel away from skin in one motion.
  • Remove any remaining adhesive left on skin with warm, soapy water or isopropyl alcohol.
  • Discard sensor in sharps container.
4. WHEN IS A TRADITIONAL BLOOD GLUCOSE METER CHECK (I.E., FINGER PRICK TEST) RECOMMENDED?
  • During times of rapidly changing glucose levels (interstitial glucose levels reported by the sensor may not accurately reflect rapid changes in blood glucose levels)
  • To confirm hypoglycemia or impending hy-poglycemia as reported by the Flash Glucose Monitoring System’s glucose messages
  • If symptoms do not match the Flash Glucose Monitoring System reading. Do not ignore symptoms that may be due to low or high blood glucose.
  • If the person is dehydrated

Note:
• The system has not been evaluated for use in persons on dialysis.
• Residents who have a medical appointment that includes strong magnetic or electromagnetic radiation (MRI/X-ray/CT) should remove the sensor prior to the appointment and apply a new one after the appointment.


References:
1. Abbott – FreeStyle Libre Flash Glucose Monitoring System User’s Manual: 2017 ART34011-301 Rev. B 06/17.
2. Government of Canada. Summary Basis of Decision – FreeStyle Libre Flash Glucose Monitoring System – Health Canada. 2020/09/17. https://hpr-rps.hres.ca/reg-content/summary-basis-decision-medicaldevice-detailThree.php?linkID=SBD00477. Accessed September 22, 2020.
3. FreeStyle Libre IN-SERVICE GUIDE v2.0 10/17.

Sign up for our Newsletter

Get updates delivered to your inbox