You should replace your Dexcom G7 sensor every 10 days. This period is designed for optimal performance and accuracy in glucose monitoring.
Understanding the Dexcom G7 Sensor Lifespan
The Dexcom G7 sensor is engineered for continuous use and is indicated to be worn for a specific duration. This allows users to track their glucose levels without frequent changes.
- Standard Wear Time: The sensor is designed to be worn for up to 10 days. This is the primary period during which the sensor provides continuous glucose readings.
- Grace Period: After the initial 10 days, the Dexcom G7 sensor also provides an additional 12-hour grace period. This extra time allows for a convenient window to replace your sensor without an immediate interruption in data. It helps in planning your sensor changes around your schedule.
Here's a quick overview of the sensor's lifespan:
| Feature | Duration | Description |
|---|---|---|
| Standard Wear | 10 Days | The intended period for continuous glucose monitoring. |
| Grace Period | 12 Hours | An additional window to change your sensor after the 10-day period expires. |
| Total Potential | 10 Days + 12 Hours | Maximum time a single sensor can be used before replacement is required. |
When to Change Your Sensor
While the 10-day wear time (plus the 12-hour grace period) is the standard, there are key instances when you should consider changing your sensor:
- Scheduled Replacement: The most common reason is when the sensor reaches the end of its 10-day wear period (followed by the 12-hour grace period). Your Dexcom G7 system will typically notify you as the sensor expiration approaches.
- Sensor Malfunction: If you experience issues with accuracy, connectivity, or sensor errors before the 10-day mark, you should contact Dexcom support for troubleshooting. If the issue cannot be resolved, the sensor may need to be replaced early.
- Sensor Detachment: If the sensor comes off your body for any reason, it cannot be reattached and must be replaced with a new one.
Tips for Sensor Replacement
- Plan Ahead: Mark your calendar or use reminders to know when your 10-day period is nearing its end. This allows you to have a new sensor ready.
- Prepare the Site: Before applying a new sensor, ensure your skin is clean, dry, and free of lotions or oils. Choose a different insertion site each time to help skin recover.
- Follow Instructions: Always follow the detailed instructions provided with your Dexcom G7 system for proper sensor insertion and activation.
Understanding the specific lifespan of your Dexcom G7 sensor ensures you maintain accurate and consistent glucose monitoring, supporting effective diabetes management.
