Continuous Glucose Monitoring
Continuous Glucose Monitoring (CGM) is a way to constantly measure a person's blood glucose levels throughout the day and night. It involves using a wearable device called a continuous glucose monitoring device. This device is placed on the body and provides dynamic information about blood sugar levels. It can also alert the wearer if their glucose levels become dangerous.
CGMs are used by people with diabetes to help them better manage their condition. They provide more convenient and accessible monitoring compared to traditional blood sugar meters. Pricking the finger is required to draw blood so a single reading can be provided at a time. CGMs have been shown to have a positive impact on glycemic control and can improve HbA1C levels.
Here are the general steps for using a continuous glucose monitoring device:
- Placement: The CGM device is usually worn on the abdomen, upper buttocks, or upper arm. It is important to follow the manufacturer's instructions for proper placement.
- Sensor insertion: A small sensor is inserted under the skin using an applicator. The sensor measures glucose levels in the interstitial fluid, which is the fluid between cells.
- Transmitter attachment: The sensor is connected to a transmitter that wirelessly sends data to a receiver or smartphone app.
- Calibration: Before using the CGM, it may need to be calibrated with a fingerstick blood glucose reading. This helps ensure accurate readings from the sensor.
- Data monitoring: The receiver or smartphone app displays real-time glucose readings, trends, and alerts. Users can see their glucose levels at any time and track how they change over hours or days.
- Interpretation and action: CGM data can help users make informed decisions about their diet, physical activity, and medication choices to keep their blood glucose levels within target range.
While continuous glucose monitoring devices can be helpful tools for managing diabetes, it is always recommended to consult with a healthcare professional for personalized advice and guidance on using these devices effectively.