A glucometer measures the sugar levels in a patient's blood, while a Continuous Glucose Monitor (CGM) monitors the levels in interstitial fluid, the fluid between cells in your tissues. Traditional glucometers require a consistent supply of test strips for use, whereas Dexcom is an unblinded non-adjunctive CGM.  The traditional method for patients of measuring glucose levels requires a fingerstick using a glucometer (blood glucose meter) which provides a glucose reading at a single point in time. The key difference between Dexcom CGM and a glucometer is that Dexcom CGM provides glucose readings throughout the day and night, including glucose speed and direction arrows that empower wearers with more information for more informed decision making•. Finally, Dexcom CGM is designed with alerts to warn the wearer of glucose highs and lows during critical times like playing, sleeping, or exercising to help wearers catch high and lows before they become critical.  Here is an example of how Dexcom CGM information could impact glucose management decisions:  Glucometer (BGM) READING: 119 

CONTINUOUS GLUCOSE MONITOR (CGM) READING: 119 

*smart devices sold separately. 
(The straight down arrow signal a rapid decline in glucose) 

Comparing cgm vs glucometer accuracy, both provided patients with current and accurate glucose readings. However, based on the Glucometer (BGM) reading of 119, this person is likely to decide that no action is required. But, with a similar glucose level reading on the Dexcom CGM and the straight down arrow, the patient might decide to eat some carbohydrates to avoid having a hypoglycemic event. 

A continuous glucose monitor (CGM) is an FDA-­approved device that provides continuous insight into glucose levels throughout the day and night. CGM also displays information about glucose direction and speed giving users additional information to help with their diabetes management. CGM also provides customizable alerts to warn the wearer of approaching glucose highs and lows. Studies have shown that CGM contributes to a decrease in HbA1c without increasing the risk for hypoglycemia.¹

CPE/CME courses are available for credit at cgmeducation.net. All courses are free online and available on demand.

If you have questions about Clarity, please contact the Dexcom Care Team at [email protected] or call 1-888-738-3646, option 4.

For every release, a notification banner is posted at the top of the Dexcom Clarity on the day of the release. Follow the banner’s link to read the release notes. If the Uploader software is updated, the notification banner posts 2 weeks before the release.

Glucose Management Indicator (GMI) approximates the laboratory A1C level expected based on average glucose measured using continuous glucose monitoring (CGM) values. Average glucose is derived from at least 12 days of CGM data. The GMI may be similar to, higher than, or lower than the laboratory A1C. Differences between GMI and laboratory A1C may reflect differences among an individual’s red blood cell lifespan, how glucose binds to hemoglobin, or due to a recent fluctuation in glucose control.

GMI Calculation: How is Glucose Management Indicator Calculated?

In order to determine a GMI calculation, it is necessary to compute the average glucose level and transform it from milligrams per deciliter (mg/dL) to a percentage.

The formula for calculating the GMI as a percentage is: GMI (Percentage) = 3.31 + 0.02392 x (glucose reading in mg/dL).

Yes. Dexcom Clarity has the option to export data as a CSV file viewable in Excel. Export from one patient by clicking the patient name, then click Export. Or, export for all patients in your Patient List by clicking Export all data from the top of your Patient List page.

You can save or print all reports from Dexcom Clarity for up to 90 days of data. While viewing a patient’s interactive report, from the top of the page click Print Reports to print or Download Reports to save. Then, choose a date range and any or all of the reports.

If your clinic has a Dexcom Clarity account, add the patient to your patient list, then click Share data to view, print, or email a share invitation. The patient enters the Sharing Code from the invitation in either their personal Dexcom Clarity account or in their Dexcom Clarity app. Once sharing is established, it continues until the patient or clinic decides to stop sharing and manually stops it within Dexcom Clarity.

If your clinic does not have a Dexcom Clarity account, patients can provide a share code generated from the Dexcom Clarity app for your clinic to enter at https://clarity.dexcom.com/professional/ or you can guest upload a receiver from the same link.

Register your clinic at https://clarity.dexcom.com/professional/registration. Whoever completes the registration will be considered the account administrator with full ability to add and manage staff accounts.