Table of Contents
Understanding the Importance of CGM Device Maintenance
Continuous Glucose Monitoring (CGM) systems track glucose concentrations in the interstitial fluid every 1–15 minutes with sensors that are wearable for up to 15 days, providing people with diabetes an invaluable tool for managing their condition effectively. These sophisticated devices have revolutionized diabetes care by offering real-time insights into glucose fluctuations, enabling users to make informed decisions about insulin dosing, dietary choices, and physical activity. However, the accuracy and reliability of these devices depend heavily on proper maintenance and care.
CGMs provide significant, potentially life-changing benefits for diabetes management, helping avoid or delay serious, short- and long-term diabetes complications. The investment in a CGM system—both financial and in terms of learning to use the technology—is substantial, making it essential to maximize the device’s lifespan and performance through diligent maintenance practices.
Proper maintenance ensures that your CGM device continues to deliver accurate readings, which are critical for making treatment decisions. The people who benefit the most from a CGM are those who use it every day or nearly every day, and consistent device care is fundamental to achieving this level of reliable use. This comprehensive guide will walk you through every aspect of maintaining your CGM device, from daily cleaning routines to troubleshooting common issues.
Daily Cleaning and Hygiene Practices
Maintaining cleanliness is one of the most fundamental aspects of CGM device care. While the sensor itself is designed to be worn continuously, the transmitter and receiver components require regular attention to ensure optimal performance and prevent complications.
Cleaning the Transmitter and Receiver
The transmitter and receiver components of your CGM system should be cleaned regularly with a soft, slightly damp cloth. Avoid using harsh chemicals, alcohol-based cleaners, or abrasive materials that could damage the device’s surface or compromise its water-resistant seals. Instead, use plain water or a mild soap solution, ensuring that you wring out the cloth thoroughly before wiping down the device.
Pay particular attention to the areas around buttons, charging ports, and connection points where dirt and debris can accumulate. After cleaning, allow the device to air dry completely before charging or storing it. Never submerge the receiver or transmitter in water unless the manufacturer specifically states that the device is waterproof rather than merely water-resistant.
Skin Preparation and Sensor Site Care
Proper skin preparation before sensor insertion is crucial for both device accuracy and preventing skin complications. Before applying a new sensor, thoroughly clean the insertion site with soap and water, then dry the area completely. Some users find that using an alcohol wipe provides additional cleansing, but ensure the skin is completely dry before sensor application, as moisture can interfere with adhesive bonding.
Avoid applying sensors to areas with scars, moles, stretch marks, or areas where the skin is irritated or damaged. Approved sites like the back of the upper arm (ages 2+) provide the most reliable readings due to consistent tissue and minimal compression. Rotating sensor sites with each new sensor application helps prevent skin irritation and maintains tissue health, which is essential for accurate glucose readings.
During the sensor wear period, keep the area clean and dry. While CGM devices can generally be worn when bathing, showering, or swimming but always check with the different manufacturer’s recommendations, you should pat the sensor area dry after water exposure and check that the adhesive remains secure.
Understanding and Performing CGM Calibration
Calibration is a critical maintenance task that ensures your CGM provides accurate glucose readings. While newer CGM models have reduced or eliminated calibration requirements through factory calibration, understanding when and how to calibrate remains important for optimal device performance.
When Calibration Is Required
For some CGM models, you may need to do a finger-stick test with a standard blood glucose monitor to calibrate the system and make sure the CGM readings are correct. The calibration requirements vary significantly between different CGM systems. Most commercialized minimally-invasive CGM systems perform the first calibration a few hours (e.g., one or two) after sensor insertion, when the sensor warm-up period has completed, and the subsequent ones every 12–24 h.
Some systems, like certain Medtronic models, require regular calibrations for optimal performance. Calibrating three or four times per day is optimal. It is best to calibrate when your glucose is not changing rapidly. Calibrating when there are two to three trend arrows on the screen may decrease sensor accuracy. Other systems, such as the Dexcom G7 and Abbott FreeStyle Libre 3, are factory-calibrated and typically do not require user calibration, though optional calibration may improve accuracy in certain situations.
Best Practices for Accurate Calibration
When calibration is necessary, following proper procedures is essential for maintaining device accuracy. Take CGM calibration extremely seriously: (i) always wash hands before taking a fingerstick; OR (ii) when hand washing isn’t possible, wipe the first drop of blood and use the second drop. These two strategies can help avoid a major source of CGM inaccuracy: dirty hands -> inaccurate BG meter readings -> inaccurate CGM calibration -> worse CGM accuracy.
Timing is crucial for accurate calibration. The optimal times for calibration are when blood glucose levels are stable, typically first thing in the morning or before meals, as indicated by a flat trend arrow. Avoid rapid changes: Do not calibrate during periods of rapidly changing glucose levels, such as after eating, taking insulin, or exercising, when trend arrows point up or down.
If you notice a discrepancy in your CGM reading of around five points or more from the reference lab value, you should try to adjust it. Some sensors allow you to manually calibrate this. You can also use a finger-prick glucometer to calibrate your CGM. However, avoid over-calibrating, as this can actually worsen accuracy rather than improve it.
Understanding the Difference Between Blood Glucose and Interstitial Fluid Glucose
It’s important to understand why CGM readings may differ from fingerstick blood glucose measurements. Sensors measure glucose concentration in the interstitial fluid (ISF), and glucose can take a while to diffuse from the blood to this fluid. So, you can use BGMs when precise glucose measurements are required, while CGMs work best with glucose trend monitoring.
This physiological lag time means that during periods of rapid glucose change, there may be a noticeable difference between your CGM reading and a fingerstick test. This is normal and doesn’t necessarily indicate a device malfunction. A good practice is to measure glucose behavior using a CGM device and then use a BGM sensor to double-check any abnormal readings.
Sensor Replacement and Storage Guidelines
Proper sensor management—from storage through replacement—is essential for maintaining accurate glucose monitoring and preventing device-related complications.
Following Manufacturer Replacement Schedules
The sensor must be replaced every 6 to 15 days depending on the system. Adhering to these replacement schedules is crucial for maintaining accuracy. These sensors have a limited lifespan, so most will have an expiration date. You have to replace the sensor after its expiry date due to a drop in precision.
Never attempt to extend sensor wear beyond the manufacturer’s recommended duration, even if the sensor appears to be functioning normally. Sensor accuracy typically declines toward the end of the wear period, and continuing to use an expired sensor can lead to inaccurate readings that may result in inappropriate treatment decisions.
Each sensor is designed to be worn for a specific period, typically ranging from 7 to 14 days. It’s important to change it on schedule to ensure accuracy. Follow a Schedule: Your CGM system will notify you when it’s time to replace the sensor. Pay attention to these notifications and plan ahead to ensure you have replacement sensors available.
Proper Sensor Storage
Storing sensors correctly preserves their integrity and ensures they function properly when applied. Keep unopened sensor packages in a cool, dry place away from direct sunlight and extreme temperatures. Most manufacturers recommend storing sensors at room temperature, typically between 36°F and 86°F (2°C to 30°C).
Avoid storing sensors in bathrooms, where humidity levels can be high, or in vehicles, where temperature fluctuations can be extreme. Check expiration dates regularly and use sensors in the order they were received to ensure you’re always using the freshest available sensors. Never use a sensor that has passed its expiration date, as this can compromise accuracy and potentially cause skin reactions.
Keep sensors in their original packaging until you’re ready to use them. The packaging is designed to protect the sensor from environmental factors that could affect its performance. Once you open a sensor package, use it immediately—don’t leave it exposed to air for extended periods before application.
Safe Sensor Removal
Removing a sensor properly is just as important as applying it correctly. When it’s time to remove a sensor, do so gently to avoid skin irritation or damage. Some users find that applying a small amount of adhesive remover around the edges of the sensor patch makes removal easier and less uncomfortable.
Peel the sensor away slowly, supporting the skin with your other hand to minimize discomfort. If you experience resistance, apply more adhesive remover and wait a moment before continuing. After removal, clean the area with soap and water and inspect the skin for any signs of irritation, redness, or allergic reaction.
Dispose of used sensors according to local regulations for medical waste. Many sensors contain small amounts of electronic components and should not be thrown in regular trash. Check with your healthcare provider or local waste management authority for proper disposal guidelines.
Battery and Power Management
Maintaining adequate power is essential for uninterrupted glucose monitoring. Different CGM systems have varying power requirements and battery management needs.
Rechargeable vs. Replaceable Batteries
Some CGM systems use rechargeable batteries in the receiver or transmitter, while others use replaceable batteries. For rechargeable systems, establish a regular charging routine to ensure your device never runs out of power unexpectedly. Many users find it helpful to charge their receiver overnight or during other predictable times when they’re less likely to need immediate access to glucose data.
Pay immediate attention to any low battery warnings from your transmitter. A dead transmitter means a complete loss of data, which can be dangerous, especially overnight. Set up low battery alerts if your system offers this feature, and respond promptly when you receive these warnings.
For systems with replaceable batteries, keep spare batteries on hand and replace them according to the manufacturer’s schedule or when you receive low battery warnings. Use only the battery type specified by the manufacturer, as using incorrect batteries can damage the device or compromise its water resistance.
Optimizing Battery Life
Several practices can help extend battery life and ensure reliable device operation. For smartphone-based CGM systems, manage your phone’s battery carefully, as the CGM app requires continuous operation. Consider enabling battery optimization settings that allow the CGM app to run in the background without being shut down by power-saving features.
Reduce screen brightness on receivers when possible, and disable unnecessary features that drain battery power. If your system uses Bluetooth connectivity, ensure the connection is stable, as frequent disconnections and reconnections can drain battery life more quickly.
For transmitters with non-replaceable batteries, be aware of the transmitter’s expected lifespan. Most transmitters last between 90 days and 6 months, depending on the model. Order replacement transmitters in advance so you have them on hand when needed, preventing gaps in monitoring coverage.
Software Updates and Digital Maintenance
Modern CGM systems rely heavily on software to process sensor data, provide alerts, and communicate with other devices. Keeping this software updated is a crucial aspect of device maintenance.
Installing Updates Promptly
Manufacturers regularly release software updates that improve device performance, fix bugs, enhance accuracy algorithms, and add new features. Enable automatic updates if your system offers this option, or check regularly for available updates and install them promptly.
Before installing major updates, review the release notes to understand what changes are being made. Some updates may require you to restart your device or temporarily interrupt monitoring, so plan updates for times when this interruption will be least disruptive.
For smartphone-based CGM systems, ensure your phone’s operating system is also kept up to date, as CGM apps are designed to work with current OS versions. However, be cautious about installing major OS updates immediately upon release—wait a few days to ensure there are no compatibility issues reported by other users.
Data Management and Backup
Your CGM data is valuable for understanding glucose patterns and making treatment adjustments. Most modern CGM systems automatically upload data to cloud-based platforms, providing backup and enabling data sharing with healthcare providers. Ensure this feature is enabled and functioning properly.
Regularly review your data to ensure it’s being captured and stored correctly. If you notice gaps in your data or synchronization issues, troubleshoot the problem promptly to avoid losing valuable glucose information. Many systems allow you to export data in various formats for personal record-keeping or sharing with healthcare providers who may not have access to your CGM platform.
Familiarize yourself with your CGM system’s data retention policies. Some systems store data indefinitely, while others may have time limits. If long-term data storage is important to you, consider periodically exporting and saving your data to personal storage.
Monitoring Device Performance and Accuracy
Regularly assessing your CGM’s performance helps identify potential issues before they compromise your diabetes management.
Recognizing Accuracy Issues
MARD (Mean Absolute Relative Difference) scoring is the standard way to measure CGM accuracy. For example, the Dexcom G7 claims an 8.2% for adults and 8.1% for children, and the G6 has a MARD of 9% for adults inserted into the stomach. The smaller the MARD score, the closer the CGM readings are to the actual glucose value, whereas a larger MARD score indicates greater discrepancies.
While you won’t be calculating MARD scores at home, understanding that some variation between CGM readings and fingerstick tests is normal helps you recognize when readings are outside acceptable ranges. You may sometimes need to compare your CGM glucose readings with a finger-stick test and a standard blood glucose meter. This could be needed if you doubt the accuracy of your CGM readings, if you are changing your insulin dose, or if your CGM gives a warning alert.
You should also keep your traditional blood glucose meter nearby to confirm readings if you feel your symptoms don’t match what the CGM shows. Trust your body’s signals—if you feel hypoglycemic but your CGM shows normal readings, or vice versa, perform a fingerstick test to verify.
Understanding Sensor Warm-Up and Break-In Periods
Accuracy improves over the first 2–12 hours after sensor insertion. The first 24 hours are considered a startup period with gradually improving reliability. This is a normal characteristic of CGM sensors and doesn’t indicate a problem with the device.
After inserting a new sensor, it may require a warm-up period. During this time, rely on your blood glucose meter for treatment decisions. It can take a few hours for a new sensor to become fully accurate. Some experienced users employ techniques to improve early sensor accuracy, though these should be discussed with your healthcare provider before implementation.
Factors Affecting CGM Accuracy
Several factors can temporarily affect CGM accuracy. Meds like acetaminophen (Tylenol), vitamin C, or even MRI scans can skew readings. Be aware of these potential interferences and verify readings with fingerstick tests when you’ve been exposed to these factors.
Sleeping or pressing on the sensor can cause false lows or compression lows. To tackle this situation, you should rotate sites and avoid tight clothing. This phenomenon, known as “compression low,” occurs when pressure on the sensor temporarily restricts interstitial fluid flow, causing falsely low readings.
Dehydration can also affect sensor accuracy, as it changes the composition of interstitial fluid. Maintaining adequate hydration supports both overall health and CGM accuracy. Temperature extremes, whether environmental or due to fever, can also impact readings.
Troubleshooting Common CGM Issues
Even with proper maintenance, you may occasionally encounter issues with your CGM system. Knowing how to troubleshoot common problems can help you resolve them quickly and minimize disruptions to your glucose monitoring.
Signal Loss and Connectivity Problems
Signal loss between the sensor/transmitter and receiver is one of the most common CGM issues. This can occur due to distance between components, physical barriers, or interference from other electronic devices. Keep your receiver or smartphone within the recommended range of the transmitter—typically 20 feet, though this varies by system.
If you experience frequent signal loss, try moving your receiver closer to the sensor, ensuring there are no large metal objects or electronic devices between them. Some users find that the position of their body affects signal strength—for example, sleeping on the side where the sensor is located may cause temporary signal loss.
Persons with diabetes who have a care provider, such as a spouse, adult child of a geriatric person with diabetes, or parent of a child with diabetes, who remotely monitors glucose data, should be cautioned that remote glucose monitoring is dependent upon server functionality and that data interruption can result. Back-up plans of having persons with diabetes revert to SMBG or methods to communicate CGM data to those who remotely follow will be needed until functionality can be restored.
Adhesive Problems
Sensor adhesive failure is another common issue, particularly in hot, humid conditions or during physical activity. If you experience adhesive problems, consider using additional adhesive products designed for CGM sensors. Skin preparation products like Skin-Tac can improve adhesive bonding, while overtapes or adhesive patches can provide extra security.
Apply these products according to manufacturer instructions, ensuring they don’t interfere with the sensor’s function. Some users find that applying a thin layer of liquid adhesive around the sensor edges before application improves adhesion, while others prefer to add overtape after the sensor is in place.
If you have sensitive skin or experience allergic reactions to adhesives, discuss alternatives with your healthcare provider. Some manufacturers offer sensors with different adhesive formulations, or you can use barrier wipes that protect skin while still allowing the sensor to adhere properly.
Sensor Errors and Failures
Occasionally, sensors may fail prematurely or display error messages. Check the sensor site and make sure the sensor overtape is holding the sensor in place. If it is not, you may need to remove the sensor and insert a new one. Common causes of sensor failure include improper insertion, damage to the sensor filament, or manufacturing defects.
If a sensor fails within the first 24 hours or displays persistent error messages, contact the manufacturer’s customer support. Most manufacturers will replace defective sensors at no charge. Keep records of sensor failures, including error messages and circumstances, as this information can help customer support troubleshoot the issue.
When experiencing sensor errors, try basic troubleshooting steps first: restart your receiver, ensure the transmitter is properly seated on the sensor, and verify that all software is up to date. If these steps don’t resolve the issue, proceed with sensor replacement.
Dealing with Inaccurate Readings
If your CGM consistently provides readings that don’t match your symptoms or fingerstick tests, several factors could be responsible. First, ensure you’re comparing readings appropriately—remember the physiological lag between blood glucose and interstitial fluid glucose, particularly during periods of rapid change.
If CGM readings do not track well with your BG meter, try switching to a different brand of meter (for calibration) or another CGM brand. BG meters and CGMs are not perfectly accurate devices; both have inaccuracy and both measure glucose in different areas of the body. If you do not get good results from one brand or model, switching to another may help – some people see brand-related differences.
Try different sensor wear locations to find what works best for you. I’ve noticed more people wearing sensors on the back of the arm, a location I’ve also used in addition to the abdomen. I generally don’t see great accuracy on the buttocks or legs. Individual body composition and physiology can affect sensor performance, so experimentation with approved wear sites may improve accuracy.
Advanced Maintenance Considerations
Beyond basic maintenance, several advanced considerations can help you optimize your CGM system’s performance and longevity.
Environmental Considerations
Environmental factors can significantly impact CGM performance. Extreme temperatures, whether hot or cold, can affect sensor accuracy and battery life. If you’ll be exposed to extreme temperatures, take precautions to protect your device. In cold weather, keep your receiver close to your body for warmth. In hot weather, avoid leaving your receiver in direct sunlight or in hot vehicles.
High altitude can also affect CGM readings, though most modern systems compensate for this automatically. If you’re traveling to high-altitude locations, monitor your readings more closely and verify with fingerstick tests if you notice unusual patterns.
Water exposure requires special attention. While many CGM systems are water-resistant, this doesn’t mean they’re waterproof. Understand your system’s water resistance rating and limitations. Some systems can withstand swimming and showering, while others should be protected from water exposure. If you’re an avid swimmer or participate in water sports, discuss your options with your healthcare provider—some systems are better suited for these activities than others.
Travel Considerations
Traveling with a CGM requires additional planning and preparation. Always pack more sensors and supplies than you think you’ll need—a good rule of thumb is to bring 50% more than your expected usage. Carry supplies in your carry-on luggage rather than checked bags to prevent loss and protect them from extreme temperatures in cargo holds.
Bring documentation from your healthcare provider explaining your medical need for CGM supplies, particularly when traveling internationally. This can help with security screening and customs. Most CGM systems are safe to wear through airport security, but inform security personnel that you’re wearing a medical device.
Time zone changes can affect your CGM’s data display and alert schedules. Adjust your device’s time settings when you arrive at your destination, and be aware that this may temporarily affect data continuity in your reports.
Integration with Other Diabetes Technology
Many CGM systems can integrate with insulin pumps, creating automated insulin delivery (AID) systems. Real-time CGMs are an essential part of Automated Insulin Delivery (AID) or Hybrid Closed Loop (HCL) Systems, like Omnipod 5. The glucose readings from the rtCGM are sent wirelessly to the pump or Pod, where an algorithm automatically adjusts insulin based on the glucose readings and trend.
If you use an integrated system, maintain both components according to their respective requirements. Ensure software compatibility when updating either device, and understand how communication between devices works. If one component fails or needs replacement, have a backup plan for managing your diabetes until the system is fully operational again.
Working with Healthcare Providers
Your healthcare team is an essential resource for CGM maintenance and troubleshooting. Regular communication with your diabetes care providers ensures you’re getting the most from your CGM system.
Sharing CGM Data
Use of a standardized CGM tracing is helpful for people with diabetes and clinicians and in multiple settings, from connected insulin pens to CGM to AID systems. Ideally, both people with diabetes and their health care teams can access and analyze the data, both between and at clinic visits to inform self-management and medication dose titration.
Ensure your healthcare provider has access to your CGM data platform and knows how to interpret the reports. Before appointments, review your data yourself and note any patterns, concerns, or questions you want to discuss. The Ambulatory Glucose Profile (AGP) report is a standardized format that many providers use to assess glucose management.
Reporting Problems and Seeking Support
Don’t hesitate to contact your healthcare provider or the device manufacturer when you encounter persistent problems. Document issues thoroughly, including when they occur, what you were doing, and any error messages displayed. This information helps support personnel diagnose and resolve problems more efficiently.
Many manufacturers offer 24/7 technical support for their CGM systems. Save these contact numbers in your phone and don’t hesitate to use them. Technical support can often resolve issues remotely, provide replacement devices when necessary, and offer tips for optimizing device performance.
If you experience repeated sensor failures or consistent accuracy issues, your healthcare provider may recommend trying a different CGM system. While switching systems requires learning new procedures and interfaces, finding a system that works reliably for your individual circumstances is worth the effort.
Safety Considerations and Backup Plans
While CGM systems are highly reliable, having backup plans ensures you can continue managing your diabetes effectively if device issues occur.
Maintaining Backup Supplies
Always have an extra sensor on hand in case one fails or falls off unexpectedly. You should also keep your traditional blood glucose meter nearby to confirm readings if you feel your symptoms don’t match what the CGM shows.
Keep your blood glucose meter, test strips, and lancets current and accessible, even if you rarely use them. Test your meter periodically to ensure it’s functioning correctly and that you remember how to use it. Replace test strips before they expire, and ensure your meter’s battery is charged or that you have replacement batteries available.
Maintain a supply of fast-acting carbohydrates for treating hypoglycemia, and ensure you have glucagon or other emergency medications prescribed by your healthcare provider. While CGM systems provide excellent hypoglycemia detection, technical failures can occur, making it essential to recognize hypoglycemia symptoms without device assistance.
Understanding Device Limitations
While CGM technology has advanced significantly, it’s important to understand its limitations. You may experience some issues while using a CGM. For safety, you may sometimes need to compare your CGM glucose readings with a finger-stick test and a standard blood glucose meter. This could be needed if you doubt the accuracy of your CGM readings, if you are changing your insulin dose, or if your CGM gives a warning alert. You might have to replace parts of your CGM over time.
Never make treatment decisions based solely on CGM data if you have doubts about accuracy or if your symptoms don’t match the readings. When in doubt, verify with a fingerstick test. This is particularly important when treating hypoglycemia or making significant insulin dosing decisions.
Long-Term Device Care and Replacement Planning
Planning for long-term CGM use involves understanding device lifecycles and ensuring continuous access to supplies.
Tracking Device Lifecycles
Different CGM components have different lifespans. Sensors are replaced every 6-15 days, transmitters typically last 90 days to 6 months, and receivers may last several years with proper care. Keep track of when each component needs replacement and order new supplies in advance.
Set reminders for ordering supplies, accounting for shipping time and potential delays. Many suppliers offer automatic shipment programs that send supplies on a regular schedule, which can help ensure you never run out. However, monitor these shipments to ensure they arrive on time and that quantities are correct.
Insurance and Cost Considerations
Work with your healthcare provider and insurance company to ensure continued coverage for CGM supplies. Insurance requirements and coverage can change, so stay informed about your benefits and any prior authorization requirements. If you experience coverage issues, your healthcare provider’s office can often assist with appeals or documentation.
Some manufacturers offer patient assistance programs for those who qualify. If cost is a barrier to consistent CGM use, explore these options with your healthcare provider or contact the manufacturer directly.
Staying Informed About CGM Technology Advances
The pace of development in diabetes technology is extremely rapid. New approaches and tools are available each year. Staying informed about advances in CGM technology helps you make informed decisions about your diabetes management tools.
Follow reputable diabetes organizations and technology manufacturers for updates on new devices and features. Organizations like the American Diabetes Association, JDRF, and Diabetes Technology Society provide valuable information about emerging technologies and best practices.
Discuss new technologies with your healthcare provider during regular appointments. They can help you evaluate whether newer systems might offer advantages for your specific situation and assist with transitioning to new devices if appropriate.
Conclusion: Maximizing the Benefits of Your CGM System
Proper maintenance of your CGM device is essential for reliable glucose monitoring and effective diabetes management. By following the guidelines outlined in this comprehensive guide—from daily cleaning routines to calibration procedures, sensor replacement schedules to troubleshooting techniques—you can ensure your CGM system provides accurate, consistent data that supports optimal diabetes control.
Remember that CGM maintenance is not just about preserving the device itself, but about supporting your overall health and well-being. Individuals wearing CGMs significantly benefit from higher time in range (TIR)—typically 70–180 mg/dL—and improved daily energy and sleep, as well as reduced hypoglycemic events and long-term complication risk. These benefits are only achievable when your CGM is functioning optimally through consistent, proper maintenance.
Develop a maintenance routine that works for your lifestyle and stick to it. Keep supplies organized and readily available, maintain open communication with your healthcare team, and don’t hesitate to seek support when issues arise. With proper care and attention, your CGM system will serve as a reliable partner in your diabetes management journey, providing the real-time glucose information you need to make informed decisions and live your life to the fullest.
As CGM technology continues to advance, maintenance requirements may evolve, but the fundamental principles of proper device care—cleanliness, timely replacement, software updates, and regular performance monitoring—will remain essential. Stay informed, stay engaged with your diabetes care team, and prioritize the maintenance practices that keep your CGM system functioning at its best. Your commitment to proper device maintenance is an investment in your health, enabling you to benefit fully from this transformative diabetes management technology.