Medtronic Diabetes

The Top 11 Questions about CGM & What You Need to Know

If you are living with Type 1 or Type 2 diabetes, Continuous Glucose Monitoring (CGM) can help you make more informed treatment decisions that can lead to better glycemic control. 

Top 11 Questions about CGM

1. What information will I get from Continuous Glucose Monitoring (CGM)?

CGM measures glucose in the tissue fluid throughout the day and night, about every five minutes, and sends the collected data to a receiver, phone, or insulin pump. This information can tell you how your glucose levels are trending, so you can make better decisions about your insulin dosing.

2. Can I set a ‘safe range’ for my blood glucose readings?

You can set thresholds for high and low numbers, and the CGM will alert you when it senses your glucose levels have moved out of the range you set.

3. Do I still have to test my blood sugar when I am using CGM?

With CGM, to calibrate the sensor, you will still have to test your blood sugar 2-4 times per day, depending on the CGM system you have.

4. What parts make up a CGM system?

A CGM system consists of three parts:

  • A small under-the-skin sensor that measures glucose levels
  • A transmitter that attaches to the sensor and transmits data
  • A receiver that displays real-time glucose information

5. Do I need an insulin pump to use CGM?

No – although some CGM systems can tie in with a pump, CGM can be used independently.

6. What types of CGM systems are available right now?

Medtronic and Dexcom both offer CGM systems with different features.

7. How long can I wear CGM sensors before I need to change them?

You can wear sensors for 5-7 days, depending on which CGM system you are using.

8. Can I use the same insertion site for my insulin pump and CGM sensors?

No, CGM and an insulin pump require two different sites.

9. Can parents and other care team members access a patient’s CGM data?

Yes, certain models of CGM systems are compatible with the iPhone to allow care team members to remotely monitor CGM data via text alerts and/or an iPhone app. This can be especially helpful to parents who have children with diabetes, as they can monitor their blood sugar levels from afar (for example, the daughter is at school and her dad is at work).

10. Can I view CGM data on a smartwatch?

Yes, Dexcom G5 will display CGM on an Apple Watch. Visit Dexcom's Apple Watch page to learn more.

11. Is CGM covered by insurance?

Yes, CGM is covered by many insurance plans. Our Insulin Pump & CGM Therapy Team can help you obtain a prescription from your doctor, navigate the insurance verification process, and place your CGM system order. They also help customers with CGM supply refills.

You can reach George and Crystal on the Healthy Living Insulin Pump & CGM Therapy Team at (866)779-8512 (Option 2) and learn more about CGM and the systems we offer at

The ‘Wear-a-Pump Challenge’ Teaches and Inspires the Healthy Living Team

Healthy Living strives to understand the challenges that people with diabetes experience every day. In the last year, seven Healthy Living Medical Supply employees walked in the shoes of their customers in the ‘Wear-a-Pump Challenge.’ Members of the team wore Medtronic and Tandem pumps for a week to take their training and empathy to a new level.

"Wearing the pump for the past three days has been an illuminating experience to say the least – my understanding of insulin pump therapy is MUCH better even after these few days." – Matt

Before wearing a pump, each employee went through extensive online and in-person training, and later in the week learned to place a new pump site and fill the pump reservoir. The greatest challenge for most participants was carb counting.

"Entering carbs was the hardest thing for me as I am used to just eating and not worrying about it, or I am just hungry and want to eat." – Crystal

The Healthy Living team found there were logistical considerations to take into account with the pumps, from showering and sleeping, to exercising and dealing with tubing.

"My tubing was too long and I got caught on many of the items in my house. On Sunday night, my tubing got stuck on something and ripped the infusion set out of my side and that did not feel good."   – Crystal

Matt had the opportunity to teach his own community about insulin pumps and raise awareness about living with diabetes.

"Just like me prior to starting at work at Healthy Living, most all of my friends/family had no idea what an insulin pump was prior to seeing one on my belt. It definitely provoked some good conversation." – Matt

Everyone had great feedback to share about this enlightening experience!

"It would take some getting used to." – April
"Overall, it is a great experience so far!" – Crystal

Learn more about insulin pump therapy from Healthy Living Medical Supply.

  • Reach us through online chat at

  • Call us at (866)779-8512 or text us at (248) 577-9903.

  • Check out our new online store at for accessories and over-the-counter medications.