{"id":28870,"date":"2024-01-11T13:42:41","date_gmt":"2024-01-11T21:42:41","guid":{"rendered":"https:\/\/getheally.com\/patients\/news\/what-is-continuous-glucose-monitoring-copy"},"modified":"2025-10-22T14:54:50","modified_gmt":"2025-10-22T21:54:50","slug":"guide-cgm-device","status":"publish","type":"post","link":"https:\/\/getheally.com\/patients\/news\/guide-cgm-device","title":{"rendered":"A guide to choosing and using the right device for Continuous Glucose Monitoring"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">The rhythm of daily life can often be disrupted for those who are managing diabetes. With the relentless cycle of blood glucose monitoring, checking levels several times a day, it can feel like a full-time job\u2014one that is both physically taxing and emotionally draining.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Continuous glucose monitoring (<\/span><span style=\"font-weight: 400;\">CGM) devices<\/span><span style=\"font-weight: 400;\"> have emerged as revolutionary tools for individuals managing diabetes..\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A <\/span><span style=\"font-weight: 400;\">continuous glucose monitoring device<\/span><span style=\"font-weight: 400;\"> is a small, wearable device designed to <\/span><a href=\"https:\/\/getheally.com\/patients\/continuous-glucose-monitoring\"><span style=\"font-weight: 400;\">track glucose levels<\/span><\/a><span style=\"font-weight: 400;\"> around the clock, offering a near continuous stream of data that goes beyond the capabilities of traditional glucose monitoring.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Unlike conventional methods that involve periodic finger stick tests, a <\/span><span style=\"font-weight: 400;\">CGM device<\/span><span style=\"font-weight: 400;\"> provides a near constant stream of information, painting a more dynamic picture of how the body processes glucose.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">They are more than simply convenient. They\u2019re comprehensive. A <\/span><span style=\"font-weight: 400;\">CGM device<\/span><span style=\"font-weight: 400;\"> can offer a holistic understanding of their glucose levels\u2014instead of a simple snapshot provided through traditional tracking methods\u2014and transform the management of diabetes<\/span><\/p>\n<h2 id=\"types-of-cgm-devices\"><span style=\"font-weight: 400;\">Types of <\/span><span style=\"font-weight: 400;\">CGM devices<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Continuous glucose monitoring devices<\/span><span style=\"font-weight: 400;\"> have evolved over the years and are more able to cater to the diverse needs and preferences of the users. There are now two options to choose from, allowing users to choose the option that aligns with their lifestyles and diabetes management goals.\u00a0<\/span><\/p>\n<p><b>The two main types of <\/b><b>CGM devices<\/b><b> are real-time and intermittent.<\/b><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Both help to <\/span><span style=\"font-weight: 400;\">track blood sugar<\/span><span style=\"font-weight: 400;\"> levels and include a <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6705487\/\"><span style=\"font-weight: 400;\">sensor that is inserted<\/span><\/a><span style=\"font-weight: 400;\"> into the subcutaneous tissue of the arm or abdomen. And both include a receiver of some sort. The difference is in how and when this data is transmitted.\u00a0<\/span><\/p>\n<h3 id=\"real-time-cgm-devices\"><span style=\"font-weight: 400;\">Real-Time <\/span><span style=\"font-weight: 400;\">CGM Devices<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Real-time c<\/span><span style=\"font-weight: 400;\">ontinuous glucose monitoring devices<\/span><span style=\"font-weight: 400;\"> do exactly what you\u2019d imagine: they deliver glucose levels in real time. These devices provide users with continuous insights into their glucose levels, empowering them to make informed decisions promptly.<\/span><\/p>\n<p><b>Benefits of real-time CGM devices include:<\/b><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Can be connected to a smartphone app or even integrated directly with the user\u2019s insulin pump.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Immediate feedback on how food, exercise, and other factors impact glucose levels.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Early detection of highs and lows, enabling timely interventions.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Customizable alarms and alerts for proactive management.<\/span><\/li>\n<\/ul>\n<p><b>Cons of real-time CGM devices include:<\/b><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This type of <\/span><span style=\"font-weight: 400;\">CGM device<\/span><span style=\"font-weight: 400;\"> is more dynamic and convenient, but it is also more expensive and is not currently covered by Medicare.\u00a0<\/span><\/p>\n<h3 id=\"intermittent-cgm-devices\"><span style=\"font-weight: 400;\">Intermittent <\/span><span style=\"font-weight: 400;\">CGM Devices<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Some don\u2019t consider these <\/span><span style=\"font-weight: 400;\">continuous glucose monitoring devices<\/span><span style=\"font-weight: 400;\"> as they don\u2019t provide the same continuous stream of data that real-time devices provide. In fact, many refer to intermittent <\/span><span style=\"font-weight: 400;\">CGM devices<\/span><span style=\"font-weight: 400;\"> as flash glucose monitoring (FGM) devices.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Unlike real-time monitors, users need to actively initiate a scan using a dedicated reader or a smartphone app to obtain glucose readings.<\/span><\/p>\n<p><b>Benefits of intermittent CGM devices include:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lower cost device that is covered by most insurance companies as well as Medicare<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Can be connected to a smartphone app<\/span><\/li>\n<\/ul>\n<p><b>Cons of intermittent CGM devices include:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">No customizable alerts<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">No continuous information stream, meaning users will still need to schedule their glucose checks<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cannot be calibrated to ensure accuracy*<\/span><\/li>\n<\/ul>\n<p><i><span style=\"font-weight: 400;\">* CGM devices utilize the interstitial fluid to determine blood glucose levels. But, the interstitial fluid levels and the actual blood glucose levels rise at different rates. This means the data may be slightly skewed. While many devices have a built-in algorithm to try and combat this issue, they do still require occasional calibration through finger stick testing for ultimate accuracy.\u00a0<\/span><\/i><\/p>\n<h2 id=\"how-to-choose-a-cgm-device\"><span style=\"font-weight: 400;\">How to choose a <\/span><span style=\"font-weight: 400;\">CGM device<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">While there are two main types of <\/span><span style=\"font-weight: 400;\">CGM device<\/span><span style=\"font-weight: 400;\">, there are many different brands and devices to choose from. There are a range of options that cater to users\u2019 diverse needs.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">To select the right CGM device for your unique requirements, consider the following key factors:<\/span><\/p>\n<h3 id=\"accuracy-and-reliability\"><span style=\"font-weight: 400;\">Accuracy and Reliability<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Evaluate the accuracy and reliability of the devices before making a final decision. You\u2019ll want to look for devices with proven accuracy and determine whether the device requires frequent calibrations\u2014and whether or not that suits your needs.\u00a0<\/span><\/p>\n<h3 id=\"sensor-size-and-placement\"><span style=\"font-weight: 400;\">Sensor Size and Placement<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Remember that this sensor will be worn for a period of time, so comfort is a factor in your decision-making. Consider the size of the sensor and the placement options. Devices that are smaller may be more comfortable and those with more flexible placement options can provide options should one area be more suitable to your lifestyle.\u00a0<\/span><\/p>\n<h3 id=\"wear-time-and-longevity\"><span style=\"font-weight: 400;\">Wear Time and Longevity<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Typically, a CGM sensor is designed to be <\/span><a href=\"https:\/\/www.niddk.nih.gov\/health-information\/diabetes\/overview\/managing-diabetes\/continuous-glucose-monitoring#:~:text=Disposable%20CGM%20sensors%20should%20be,CGM%20is%20not%20working%20correctly.\"><span style=\"font-weight: 400;\">worn for 7-14 days<\/span><\/a><span style=\"font-weight: 400;\">. Though, there are some implantable devices that are meant to last longer, some up to six months. So, you will want to at least consider the sensor\u2019s lifespan when making your decision.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">How often do you need to replace it? And, how well does the adhesive patch hold up during that time frame?<\/span><\/p>\n<h3 id=\"data-display-and-connectivity\"><span style=\"font-weight: 400;\">Data Display and Connectivity<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Evaluate the user interface. Is it user-friendly and easy to navigate? Does it align with your preferences?\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You may also want to consider the integration options. Is there a smartphone app that you can connect to? And, if so, you may want to know if wifi is required or if offline monitoring is at all possible? Does it integrate with your insulin pump for more accurate delivery of your doses?<\/span><\/p>\n<h3 id=\"cost-and-insurance-coverage\"><span style=\"font-weight: 400;\">Cost and Insurance Coverage\u00a0<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The <\/span><span style=\"font-weight: 400;\">cost of a continuous glucose monitoring system<\/span><span style=\"font-weight: 400;\"> is certainly a key factor when making your decision. CGM devices can be expensive if paying out of pocket. <\/span><b>Monthly costs can range from $300<\/b><span style=\"font-weight: 400;\"> and upwards depending on the device chosen.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You will want to compare costs of the potential devices, including the sensor and required accessories. You will also want to check if your insurance covers the device and its associated costs.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Intermittent devices are cheaper and covered by Medicare, but they may not be the best choice for you. So, don\u2019t make your decision based on cost alone.\u00a0<\/span><\/p>\n<h3 id=\"features-and-customization\"><span style=\"font-weight: 400;\">Features and Customization<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Explore the range of customizable alerts and alarms for high and low glucose levels. What are the trend analysis features? What kind of insights does it provide? How often does it need to be calibrated?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">These are all questions you should be asking when making your decision.\u00a0<\/span><\/p>\n<h2 id=\"how-to-use-a-cgm-device\"><span style=\"font-weight: 400;\">How to use a <\/span><span style=\"font-weight: 400;\">CGM device<\/span><\/h2>\n<h3 id=\"inserting-the-sensor\"><span style=\"font-weight: 400;\">Inserting the sensor<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Unless you\u2019ve opted for an implantable device, you will need to regularly insert the sensor of your <\/span><span style=\"font-weight: 400;\">CGM device<\/span><span style=\"font-weight: 400;\">. Sensors last 7-14 days on average, so this will be something you do with regularity.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Each brand and model will have its own instructions for how to properly insert the sensor, but there are some general rules and procedures to follow.\u00a0<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Gather your supplies.<\/b><span style=\"font-weight: 400;\"> Naturally, your first step should be to ensure you have all the necessary supplies, including the CGM sensor, applicator, alcohol wipes, and any additional items specified by the manufacturer.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Wash your hands.<\/b><span style=\"font-weight: 400;\"> And the area where you plan to insert the sensor. Proper hygiene is extremely important if you want to avoid infection. The most common locations for insertion are the abdomen or back of the upper arm. Make sure to avoid areas with scarring, tattoos, or existing irritation.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Prepare the sensor.<\/b><span style=\"font-weight: 400;\"> Remove the sensor applicator from its packaging. Check for any visible damage to the sensor or its components. If there are instructions from the manufacturer for prepping the sensor, then you should follow those as well.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Insert the sensor.<\/b><span style=\"font-weight: 400;\"> Follow the manufacturer&#8217;s instructions for sensor insertion. Typically, this involves removing a protective cover, attaching the applicator to the sensor, and applying gentle pressure to insert the sensor under the skin. This will be breaking some layers of skin, so you may feel a slight pinch or pressure during insertion.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Secure the sensor.<\/b><span style=\"font-weight: 400;\"> Once insertion is complete, you\u2019ll want to secure the sensor to prevent it from being accidentally removed. Some devices may have adhesive patches to keep the sensor attached to the skin.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Activate the sensor.<\/b><span style=\"font-weight: 400;\"> Use your smartphone app or dedicated reader to activate the sensor. Follow the on-screen prompts to initiate the monitoring process.<\/span><\/li>\n<\/ol>\n<h3 id=\"calibrating-the-sensor\"><span style=\"font-weight: 400;\">Calibrating the sensor<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Some <\/span><span style=\"font-weight: 400;\">CGM devices<\/span><span style=\"font-weight: 400;\"> require manual calibration with blood glucose readings for accurate performance. Check the manufacturer&#8217;s instructions to determine if your device needs calibration. If it does, you should follow the manufacturer\u2019s instructions to ensure this process is completed with 100% accuracy.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Generally, to calibrate the sensor, you will need to compare the sensor&#8217;s readings to a traditional blood glucose meter reading.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You will need to perform a traditional blood glucose test, typically through a finger stick test. Then you\u2019ll need to enter that information into your app and complete the calibration.\u00a0<\/span><\/p>\n<h3 id=\"wearing-and-caring-for-the-sensor\"><span style=\"font-weight: 400;\">Wearing and caring for the sensor<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Though your sensor will typically last for 7-14 days, properly caring for it can help to maximize its lifespan. Here are some tips for wearing and caring for your sensor:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Avoid using creams, lotions, or oils on the skin where the sensor is placed, as they may interfere with adhesion.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ensure the sensor is securely attached to the skin. If you notice any peeling or detachment, use medical tape or additional adhesive products recommended by the manufacturer.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Follow the manufacturer&#8217;s guidelines regarding water resistance. Some sensors are waterproof, while others may have limitations.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Wear loose-fitting clothing to avoid unnecessary friction or pressure on the sensor.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take precautions during intense physical activities to protect the sensor.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use additional adhesive or protective coverings if needed.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Store unused sensors according to the manufacturer&#8217;s recommendations, typically in a cool, dry place.<\/span><\/li>\n<\/ul>\n<h3 id=\"viewing-and-interpreting-your-cgm-data\"><span style=\"font-weight: 400;\">Viewing and interpreting your CGM data<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">You can\u2019t benefit from the continuous stream of data your <\/span><span style=\"font-weight: 400;\">CGM device<\/span><span style=\"font-weight: 400;\"> provides if you\u2019re not viewing the results and watching the trends. The CGM sensor will transmit the information to the reader every few minutes.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">To view the data, you will need to use the provided reader or the app your device integrates with.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The main screen typically displays your current glucose level. This is the most recent reading from the CGM sensor. But, you should also be able to access trend graphs or charts that show how your glucose levels have been changing over time.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You can also set alerts, warnings, and alarms in the app to help you take timely action when necessary.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Interpreting your data can be slightly more complicated. Your app may identify certain trends for you, but you can also look for these yourself in the charts provided. To interpret data:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Look for patterns in your data, such as post-meal spikes or overnight lows.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pay attention to the percentage of time your glucose levels spend in the target range.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Correlate your glucose data with daily activities, such as meals, exercise, and stress. This can help you understand how different factors influence your glucose levels.<\/span><\/li>\n<\/ul>\n<h2 id=\"tips-for-living-with-a-cgm-device\"><span style=\"font-weight: 400;\">Tips for living with a <\/span><span style=\"font-weight: 400;\">CGM device<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Living with a <\/span><span style=\"font-weight: 400;\">continuous glucose monitoring device<\/span><span style=\"font-weight: 400;\"> can take a lot of the stress out of your diabetes management, making it more\u2026manageable. But, that doesn\u2019t mean you can simply insert and ignore.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Here are some tips to help you navigate life with a <\/span><span style=\"font-weight: 400;\">CGM device<\/span><span style=\"font-weight: 400;\"> effectively.<\/span><\/p>\n<h3 id=\"set-realistic-goals\"><span style=\"font-weight: 400;\">Set Realistic Goals<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Work closely with your healthcare team to establish realistic goals for glucose control, time in range, and other relevant metrics. Don\u2019t expect things to happen all at once. Make gradual adjustments to your lifestyle and treatment plan based on CGM data. Set achievable goals and celebrate small victories.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Thankfully you have plenty of data to work with. Leverage CGM data to identify patterns and areas for improvement. Set goals that align with these insights, such as minimizing post-meal spikes or increasing time in range.<\/span><\/p>\n<h3 id=\"manage-alerts-and-alarms\"><span style=\"font-weight: 400;\">Manage Alerts and Alarms<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Tailor alerts and alarms to your preferences and needs. Set thresholds that align with your target glucose ranges, and adjust as necessary. Don\u2019t let your monitoring app become the \u201cboy who cried wolf.\u201d Customize the urgency and frequency of alerts to avoid unnecessary interruptions while ensuring critical notifications are not missed.<\/span><\/p>\n<h3 id=\"share-cgm-data\"><span style=\"font-weight: 400;\">Share CGM Data<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">If desired, share your CGM data with trusted individuals, such as family members or caregivers, using the sharing features available on the CGM device or app. This will help your care team to better support you and your needs.\u00a0<\/span><\/p>\n<h2 id=\"take-control-of-your-diabetes\"><span style=\"font-weight: 400;\">Take control of your diabetes<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Living with a <\/span><span style=\"font-weight: 400;\">CGM device<\/span><span style=\"font-weight: 400;\"> is a dynamic process that involves continuous learning and adaptation. But, it can provide unbeatable insight into your glucose fluctuations and how to live a healthier life\u2014even preventing some of the long-term complications that come with improper diabetes management.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Take control of your health and your diabetes with a <\/span><span style=\"font-weight: 400;\">continuous glucose monitoring device<\/span><span style=\"font-weight: 400;\">. No need to Google \u2018how to get a continuous glucose monitor\u2019. Heally makes it easy. <\/span><a href=\"https:\/\/synergy.getheally.com\/f\/vshop-book_appt?visit_type_first=true?utm_source=CGMLanding\"><span style=\"font-weight: 400;\">Get a CGM prescription online now!<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"The rhythm of daily life can often be disrupted for those who are managing diabetes. With the relentless&hellip;\n","protected":false},"author":7,"featured_media":28872,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2312],"tags":[1811,1810,1689,1812,1746,1668,2315],"class_list":{"0":"post-28870","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-metabolic-health","8":"tag-cgm","9":"tag-continuous-glucose-monitoring","10":"tag-diabetes","11":"tag-glucose","12":"tag-health-and-wellness","13":"tag-healthy-lifestyle","14":"tag-medical-devices"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Continuous Glucose Monitoring Device Guide<\/title>\n<meta name=\"description\" content=\"Get expert tips on choosing the right CGM system for your needs and learn how to effectively integrate it into your daily health 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