Managing diabetes can be challenging, but modern technology has made it easier than ever. One of the most powerful tools available today is the Continuous Glucose Monitor (CGM)—a device that automatically tracks your blood sugar levels throughout the day and night. If you’ve never heard of a CGM before, this guide will walk you through what it is, how it works, and how to choose the right one for you.
Understanding Blood Sugar Monitoring
For people with diabetes, keeping blood sugar levels in a healthy range is crucial. Traditionally, this required fingerstick tests using a blood glucose meter. While effective, fingersticks only provide a snapshot of your blood sugar at that moment, making it difficult to see trends or predict highs and lows.
A CGM changes that by giving you a continuous stream of blood sugar readings, helping you manage your diabetes with more confidence and fewer surprises.
How Does a CGM Work?
A CGM system includes three main components:
- A Small Sensor – Inserted under the skin, usually on the abdomen or arm, the sensor continuously measures glucose levels in your interstitial fluid (the fluid between your cells). The sensor is painless to wear and needs to be replaced every 10 to 14 days, depending on the model.
- A Transmitter – Attached to the sensor, the transmitter sends glucose data wirelessly to a receiver or smartphone app.
- A Receiver or Smartphone App – Displays your real-time glucose readings, trends, and alerts, helping you make informed decisions about food, exercise, and insulin use.
Unlike fingerstick testing, CGMs track glucose levels 24/7, detecting patterns and alerting you if your blood sugar is too high or too low.
Benefits of Using a CGM
A CGM can make diabetes management easier in several ways:
- No more frequent fingersticks – Most CGMs significantly reduce or eliminate the need for finger pricks.
- Real-time alerts – Get notified before your blood sugar goes too high or too low, helping prevent emergencies.
- Better insights – CGMs show trends over time, helping you understand how food, exercise, stress, and medications affect your blood sugar.
- Improved A1C levels – Many users see better long-term blood sugar control, reducing the risk of diabetes complications.
- Integration with insulin pumps – Some CGMs work with insulin pumps to automate insulin delivery.
Types of CGMs: Which One is Right for You?
Not all CGMs are the same. Below are some of the most popular options available today:
Dexcom CGMs
Dexcom devices are known for their accuracy, real-time updates, and seamless integration with insulin pumps.
- Dexcom G6 – Provides glucose readings every 5 minutes, works with insulin pumps and smart devices, and has a 10-day sensor life.
- Dexcom G7 – The latest model, featuring a smaller sensor, faster warm-up time (30 minutes), and no need for calibrations.
Best for: People who want real-time monitoring, pump compatibility, and high accuracy.
Abbott FreeStyle Libre CGMs
Abbott’s FreeStyle Libre systems focus on simplicity and ease of use, with long-lasting sensors and real-time readings.
- FreeStyle Libre 3 & 3 Plus – Provides glucose readings every minute, features a 14-day sensor life, and is easy to scan using a smartphone app.
Best for: Those who want longer wear time with minimal maintenance and no routine fingersticks.
Who Should Use a CGM?
CGMs are beneficial for:
- People with Type 1 or Type 2 diabetes who want better control over their blood sugar.
- Those using insulin therapy, especially multiple daily injections or an insulin pump.
- Anyone who experiences frequent highs or lows and wants real-time alerts.
- People who want less hassle in their diabetes management.
If you’re not sure whether a CGM is right for you, talk to your doctor or diabetes care team.
How to Get a Continuous Glucose Monitor (CGM)
1. Talk to Your Doctor – If you think a CGM could help, start by having a conversation with your doctor. They’ll evaluate your needs and provide a prescription if it’s the right fit for you.
2. Let Us Handle Insurance – Dealing with insurance paperwork can be frustrating, but we take care of that for you. We’ll work with your provider to check your coverage and help minimize out-of-pocket costs.
3. Pick the Best CGM for You – Not sure which CGM to choose? No problem! Our team will walk you through your options and help you find the best match for your lifestyle.
4. Get It Delivered to Your Door – Once everything is approved, we’ll ship your CGM straight to you, complete with easy setup instructions.
5. We’re Here for You – Questions? Need help? Our support team is just a call away. We’ll make sure you feel confident using your CGM so you can get the most out of it.
A Continuous Glucose Monitor (CGM) can be a game-changer for managing diabetes, helping you track your glucose levels with greater ease and accuracy. Whether you choose Dexcom for real-time insights or FreeStyle Libre for long sensor wear, using a CGM can lead to better blood sugar control and fewer daily hassles.
If you’re ready to take the next step, call us now!
Disclaimer: Device availability, features, and insurance coverage may change over time. Please consult the official websites of Dexcom and Abbott FreeStyle Libre, or speak with a healthcare professional for the most up-to-date information.