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Continuous Glucose Monitors (CGMs) are devices used to track blood sugar levels in real-time. Proper calibration is essential for accurate readings. This article discusses methods to prevent and fix calibration errors in CGMs to ensure reliable glucose monitoring.
Understanding Calibration in CGMs
Calibration involves adjusting the CGM device to match blood glucose levels measured by a standard blood test. Most CGMs require periodic calibration to maintain accuracy. Errors can occur if calibration is not performed correctly or if the device is faulty.
Preventing Calibration Errors
To prevent calibration errors, follow these best practices:
- Use fresh, properly stored test strips for calibration.
- Calibrate the device at the recommended times, usually when blood sugar levels are stable.
- Ensure the blood sample is applied correctly and the device is clean.
- Avoid calibrating during rapid blood sugar changes or after physical activity.
- Follow the manufacturer’s instructions precisely.
Fixing Calibration Errors
If calibration errors occur, try the following steps:
- Recalibrate the device using a new blood sample.
- Ensure the blood sample is sufficient and properly applied.
- Check for device errors or sensor issues.
- Restart the device if necessary.
- If errors persist, contact the manufacturer or healthcare provider for assistance.
Additional Tips
Regularly update the device firmware if updates are available. Keep the sensor and device clean to prevent malfunctions. Monitoring calibration accuracy over time helps maintain reliable glucose readings.