Some patients have expressed concern that their Dexcom CGM readings are sometimes very different from their meter. How can I ease their concerns about using the Dexcom G5 Mobile CGM System non-adjunctively?

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CGM is based on trends - not a single number. The continuous information provides a real-time, dynamic view of one’s glucose to facilitate better management decisions. To optimize the use of Dexcom CGM:

  • Patients should be reminded of proper fingerstick technique so they will use their "best" fingersticks for calibrating.
  • Patients need to understand that fingersticks are not always accurate, despite their long history. Advise patients to consider taking a second fingerstick when their CGM and first fingerstick do not match.
  • Remind patients they are not required to use the Dexcom G5 Mobile to make treatment decisions; they may still use their meter to guide their diabetes management decisions.

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