How can a senior with type 2 diabetes track blood sugar levels on their phone using Dexcom G5?
Managing glucose can be tedious for adults. The Dexcom G5 system allows continuous monitoring by sending updates directly to an iOS device over Bluetooth. This eliminates the need for a separate hardware receiver.
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The Dexcom G5 system allows a senior to track blood sugar levels on an iPhone by streaming continuous glucose data via Bluetooth directly to the companion app, eliminating the need for a separate hardware receiver.
- Pair the iPhone as the Receiver: The Dexcom G5 is designed to pair directly with an iOS device. In 2026, ensure you are using an iPhone running a recent version of iOS, as the app requires the phone to function as the primary receiver for real-time data.
- Configure Real-Time Alerts: Use the Dexcom G5 app to set personalized high and low glucose thresholds. This allows the phone to vibrate or ring when blood sugar levels move outside the target range, providing critical safety checks without manual monitoring.
- Leverage Bluetooth Range: The sensor transmits data over Bluetooth, so keep the iPhone within approximately 10 feet of the user during the day. For overnight safety, consider using a compatible relay device or keeping the phone near the bedside to ensure continuous data collection.
- Understand the Calibration Requirement: Unlike newer CGMs, the Dexcom G5 typically requires two daily fingerstick calibrations. Set recurring reminders in the phone’s calendar app to log these entries in the app to maintain accuracy.
- Share Data with Caregivers: The system offers remote data sharing features, allowing family members or healthcare providers to view trends remotely. This is particularly useful in the US and UK where remote monitoring supports better chronic care management.
- Consult a Diabetes Educator: Before starting, ensure a certified diabetes care specialist reviews your target ranges. They can help set the optimal alert settings in the app based on your specific health profile and medication regimen.
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