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Continuous Glucose Monitoring (CGM) systems are valuable tools for managing diabetes. Proper calibration is essential for accurate readings. Understanding common causes of calibration errors can help users troubleshoot and improve device performance.
Common Causes of Calibration Errors
Several factors can lead to calibration errors in CGM devices. These include user-related issues, device malfunctions, and environmental influences. Identifying these causes can help in taking corrective actions.
User-Related Factors
Incorrect calibration procedures are a primary cause of errors. Users may enter inaccurate blood glucose values or calibrate at inappropriate times, such as during rapid glucose changes. Ensuring proper technique and timing is crucial.
Device and Sensor Issues
Sensor malfunctions, expired sensors, or improper placement can affect calibration accuracy. Regularly checking sensor integrity and following manufacturer instructions can reduce errors.
Environmental and External Factors
Extreme temperatures, humidity, or physical shocks can impact sensor performance. Additionally, certain medications or substances may interfere with readings. Keeping the device in optimal conditions helps maintain calibration accuracy.
Tips to Fix Calibration Errors
- Follow the manufacturer’s calibration instructions carefully.
- Calibrate when blood glucose levels are stable.
- Use fresh, properly stored sensors.
- Avoid calibrating in extreme environmental conditions.
- Ensure blood glucose meter readings are accurate before calibration.