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The Continuous Glucose Monitoring System for people on multiple daily insulin injections

John uses his glucose monitoring app to check his levels

About CGM
What is Continuous Glucose Monitoring?

Continuous glucose monitoring enables you to continuously monitor your glucose levels, allowing you to track trends and patterns. It requires two small pieces of equipment, a glucose sensor and a transmitter that measures your interstitial glucose levels every 5 minutes and sends these readings to your compatible mobile device running the Guardian™ Connect App. This means you’ll receive 288 readings every day, compared to approximately 6 to 10 readings when you use a traditional finger-prick, blood glucose monitor. The good news is, you don’t need to prick your fingers more than you’re used to doing but get so much more information.

What is even more important is that the Guardian Connect system helps you to see trends in your glucose levels. The system lets you see your glucose values, as well as whether your levels are going up or down. That way, you can begin to anticipate highs and lows. You can also customise predictive alerts for highs and lows so that you have a chance to react before it occurs. With a regular blood glucose monitor you might think everything is okay when you see 6 mmol/l on your display, but if your blood glucose drops really fast you can have a hypoglycaemic event in just minutes after the check. Guardian Connect is the ultimate tool to help you continually monitor your glucose levels and let you focus on enjoying life.

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Components of continuous glucose monitoring


The Guardian Connect CGM (Continuous Glucose Monitoring) system works with a sensor that you change every 6 days that attaches to a rechargeable transmitter. The sensor measures the interstitial glucose and this reading is sent to the Guardian Connect App on your compatible mobile device via the transmitter.

Medtronic Enlite sensors are composed of a thin and flexible electrode that is inserted just under your skin. Once the sensor is inserted you will no longer feel it. The electrode is constantly in contact with your interstitial fluid. A chemical reaction between glucose and the material of the electrode enables the sensor to measure your glucose levels continuously. A small transmitter device connected to the sensor transmits this information to your compatible device via Bluetooth.

The sensor measures your glucose in the interstitial fluid rather than directly in your blood stream (which is the reading from your blood glucose meter). There is a small physiological delay of approximately seven minutes for the glucose to travel from the blood to your interstitial fluid. It is therefore to be expected that at a given time, your blood glucose obtained from a fingerprick reading and your Guardian Connect reading would be different.

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