Do you use continuous glucose monitoring (also known as “CGM”) or care for someone who does? Listen to this podcast hosted by two diabetes education specialists, Diana Isaacs, PharmD, and Patricia Montesinos, NP, as they review important information regarding the currently available CGM devices and discuss common issues and questions that arise for people with diabetes using CGM. The pair will begin by reviewing important information about CGM devices for people starting out and will address common questions about using CGM. This will be followed by discussion of more advanced topics, including when to call your healthcare team about your device or the glucose data on your device, and how to approach making insulin and dietary adjustments based on glucose data from a CGM device.

Please note that information in this podcast is not meant to replace the guidance of your doctor or diabetes healthcare team. Please consult a medical professional regarding whether CGM is a good choice for you. Any device information, indications, and guidelines presented in this activity are current as of the recording on 10/22/2020 and they are subject to change as new information is published.


Learning Objectives

  • Describe how to safely start using a new CGM device
  • Review basic information about glucose readings from CGM devices
  • Review what to do if your device falls off or causes skin irritation 
  • Describe a general approach to using CGM data to make dietary and insulin dosing changes



Patricia H. Montesinos, MSN, APRN, FNP-BC, BC-ADM, CDE

MedStar Diabetes Institute
Washington, DC



Diana Isaacs, PharmD, BCPS, BC-ADM, BCACP, CDCES

Endocrinology Clinical Pharmacy Specialist/CGM Program Coordinator
Endocrinology and Metabolism Institute
Cleveland Clinic Diabetes Center
Cleveland, OH




The following relevant financial relationships have been disclosed by faculty: 


Speaker's Bureau for Novo Nordisk Inc. Dexcom, Abbott, and Xeris Pharmaceuticals
Consulting for Companion Medical


Patricia Hathway Montesinos, MSN, APRN, FNP-BC, BC-ADM, CDCES

Consultant for BioTel


  1. Continuous Glucose Monitoring Patient Education. 2020. UpToDate, Inc. https://www.uptodate.com/contents/self-monitoring-of-blood-sugar-in-diabetes-beyond-the-basics#H15  
  2. Eversense CGM Manufacturer’s Website. 2020. Senseonics, Inc.  https://www.eversensediabetes.com/
  3. Dexcom G6 CGM Manufacturer’s Website. 2020. Dexcom, Inc. https://www.dexcom.com/g6-cgm-system 
  4. Freestyle Libre CGM Manufacturer’s Website. 2020. Abbott Laboratories. https://www.freestylelibre.us/ 
  5. Medtronic Guardian Connect System Manufacturer’s Website. 2020. Medtronic. https://www.medtronicdiabetes.com/products/guardian-connect-continuous-glucose-monitoring-system 
  6. Medtronic Guardian Sensor 3 Manufacturer’s Website. 2020. Medtronic. https://www.medtronicdiabetes.com/products/guardian-sensor-3 

Commercial Supporters

Lilly. For further information concerning Lilly grant funding visit www.lillygrantoffice.com.

Education Partners

Pri-Med Institute and Association of Diabetes Care & Education Specialists