Where to Place CGM Sensor: All You Need to Know

A continuous glucose monitor, commonly known as a CGM sensor, has a micro needle that is inserted under the skin. These microneedles collect blood glucose from your interstitial blood, and transmitters (installed within the modern sensors) transmit blood glucose data to the monitor, which can either be a handheld device or your compatible smartphone. This rises concern about where to place CGM sensor. Well, this varies depending on the sensor and your age. However, there are a few other things that should be taken care of.

Where to Place CGM Sensors: A Quick look

Typically, in adults, adolescents, and even children, most of the CGM sensors are either applied on the back of the upper arm or on the belly button (at least 2 inches away from the belly button). In kids, some CGM sensors can be inserted into the upper buttocks as well. The following are some of the well-known CGM sensors and their application sites:

Freestyle Libre 3 Plus:

This small, yet AID system-compatible CGM sensor is indicated for individuals aged 2 and above living with diabetes. This sensor is applied on the back of your upper arm.

Freestyle Libre 2 Plus:

Designed for individuals aged 2 and older with diabetes, the Freestyle Libre 2 Plus is a discreet CGM sensor that is worn on the back of the upper arm and offers optional alarms for high and low glucose levels, helping users manage their blood sugar with greater confidence.

Important:

Pregnant women should NOT apply a CGM sensor on their belly.

Dexcom G6:

The Dexcom G6 CGM is a reliable glucose monitoring system approved for individuals aged 2 years and older. It features a wearable sensor placed on the abdomen in individuals aged 2 years and above OR for ages between 2 – 17 years the G6 can be applied on the upper buttocks, providing continuous glucose readings without the need for routine fingersticks. With customizable alerts and integration with insulin delivery systems.

Dexcom G7:

Smaller and more discreet than the G6, the Dexcom G7 CGM is approved for individuals aged 2 and older. Unlike the Dexcom G6, which was worn on the abdomen, the Dexcom G7 has been designed to be worn on the back of the upper arm and upper buttocks for ages 2 – 6 years old.

Conclusion:

CGM sensor application areas vary depending on their model and the wearer’s age and some other conditions; a pregnant lady should not wear a CGM sensor on her belly. When applied correctly and firmly, these sensors provide continuous glucose insights. The accuracy and longevity of these sensors can be increased with skin-friendly and breathable CGM patches that provide adhesiveness and the required stretch together.