Continuous Glucose Monitoring with FreeStyle Libre 3
Understanding Continuous Glucose Monitoring Systems
- The FreeStyle Libre 3 is a form of continuous glucose monitoring that measures interstitial glucose levels continuously, providing data when scanned with a reading device 1
- CGM systems like the FreeStyle Libre 3 are designed for regular, ongoing use to monitor glucose trends over time, not as one-time or as-needed interventions 2, 3
- These devices are meant to be worn consistently to provide maximum clinical benefit in diabetes management 1, 4
Rationale for Routine Scheduling
- CGM devices should be used "as close to daily as possible for maximal benefit" according to diabetes care standards, supporting a routine scheduling approach 1, 4
- For intermittently scanned CGM devices like the FreeStyle Libre series, guidelines recommend scanning frequently (minimum once every 8 hours) to capture complete 24-hour data, which aligns with routine rather than PRN or one-time use 2, 3, 4
- Patients should have uninterrupted access to CGM supplies to minimize gaps in continuous glucose monitoring, further supporting routine scheduling 1
Sensor Replacement and Duration Considerations
- Regular sensor changes are essential for maintaining accuracy and reliability of glucose readings 5
- When changing sensors, it's advisable to insert the new sensor before removing the old one to avoid gaps in data collection 5