BGM refers to fingerstick glucose checks done with a blood glucose meter. Encourage people who take insulin and use BGM to check their glucose when appropriate based on their insulin therapy. This may include:

There are different types of CGM systems, including:

  • Real-time CGM systems, owned by individuals and measure and display glucose levels continuously.

  • Intermittently scanned CGM systems, owned by individuals and measure glucose levels continuously but require scanning for visualization and storage of glucose values.

  • Professional CGM systems, owned by clinics and intended to be used temporarily for 7–10 days to inform self-management and treatment decisions for people with diabetes. Data may be blinded or visible to the person wearing the device.

Who can benefit from CGM?

  • CGM should be offered for adults with diabetes using insulin therapy (basal only, multiple daily injections, or pump therapy).

  • CGM should be offered for youth with type 1 or type 2 diabetes using multiple daily injections or insulin pump therapy.

  • CGM can be helpful as an adjunct to BGM for pregnant individuals with diabetes.

  • Periodic use of personal or professional CGM can be helpful for diabetes management when consistent use is not desired or available.

Section 7 of the complete ADA Standards of Care in Diabetes—2024 includes a wealth of additional information on blood glucose meters, evidence supporting the use of CGM, various insulin delivery systems, and digital health apps and online programs.

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