Doctors always ask people to keep their blood sugar levels under control because high blood sugar causes many health problems, including type 2 diabetes and hyperglycemia. Continuous glucose monitoring is a technique wherein a device automatically gauges one’s blood sugar levels all day and night. By doing so, it detects fluctuations at specific times and helps users stabilize blood sugar levels. So, here are a few critical things to know about continuous glucose monitors (CGMs).
What are continuous glucose monitors?
CGMs are devices people can wear on the body to measure glucose levels throughout the day. By tracking blood glucose levels for 24 hours, users can decide how much insulin they require and when. While fingerstick checks are also quite common to monitor blood sugar levels, individuals cannot use them continuously. That’s why doctors recommend CGMs for more detailed assessments.
Procedure to use the device
Individuals must use CGMs correctly for the best outcome. Here are three steps involved in using the device:
- Place the sensor beneath the skin
Individuals should start by placing the device’s sensor under the skin, typically on the arm or stomach. Most CGMs come with applicators, which make the process easy. One may use adhesive tapes to hold the sensor firmly in place. - Monitor blood sugar levels
The sensor measures blood sugar levels and generates readings once every five minutes. It then sends the readings to an external handheld device, like a cell phone. Users should monitor the readings to spot blood sugar fluctuation patterns during the day. - Change the sensor periodically
One would need to change the sensor periodically—usually once a week or once every two weeks—based on the device’s brand and the specific instructions it comes with. Changing the sensor is important to ensure it continues functioning well. However, with certain long-term CGMs, doctors may change the sensors only a few times a year.
Benefits of continuous glucose monitors
CGMs have several advantages when used properly. A few examples are discussed below:
- Insights on glucose fluctuations
Since these devices are worn day in and day out, they can tell exactly when blood sugar levels fluctuate (for example, just before meals or after exercise). So, it helps understand how certain activities impact blood glucose levels and what one can do to control the fluctuation. - Instant alerts on high or low blood sugar
Sometimes, people pass off subtle signs of high or low blood sugar as general fatigue. However, with CGMs, one can instantly identify if glucose level fluctuation is the reason for such symptoms and take necessary measures. - Fewer fingerstick checks required
Fingerstick checks can be inconvenient, especially if someone has to monitor their blood sugar frequently. Wearing CGMs can reduce the number of fingerstick checks.
