Continuous Glucose Monitors (CGMs) are a fantastic tool for people managing diabetes, offering real-time data to help keep blood sugar levels within target ranges. However, to ensure accurate readings and maintain your CGM's functionality, it’s essential to change it regularly.The frequency of changing a CGM varies depending on the brand and model:
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Dexcom G6: Typically needs replacing every 10 days.
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Freestyle Libre: Usually worn for 14 days before needing a new sensor.
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Medtronic Guardian Sensor: Can last up to 7 days.
Make sure to follow the manufacturer’s guidelines to get the most reliable results.
Key Considerations When Changing Your CGM
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Skin Preparation Is Key
- Always clean the area with alcohol wipes before applying a new sensor.
- Make sure the skin is dry before attaching the CGM to avoid irritation and improve adhesion.
- Good hygiene can prevent infections or skin reactions.
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Be Mindful of Skin Reactions
- Some people experience skin irritation from adhesives. Opt for hypoallergenic tapes or barriers if you have sensitive skin.
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Precautions While Wearing a CGM
- Avoid knocking or pulling on the CGM as this may affect its performance.
- Be cautious with water exposure—while many CGMs are water-resistant, extended periods of water exposure could still be harmful.
- Consider using sensor covers or adhesive patches for added security during physical activity.
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Accuracy and Calibration
- Some CGMs may require calibration to maintain accurate blood glucose readings, so follow instructions from your device manufacturer.
- If you notice abnormal readings, double-check with a blood glucose meter and contact your healthcare provider if necessary.
Benefits of Regular CGM Changes
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Accurate Glucose Monitoring: Ensures you're getting the best possible data for your diabetes management.
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Reduced Skin Irritation: Regular changes help prevent prolonged skin exposure to adhesives, minimizing irritation.
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Device Longevity: Properly adhering to the changing schedule can extend the lifespan of your CGM system.
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