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But you still need a finger-stick glucose test twice a day to check the accuracy of your CGM against a standard blood glucose meter. Researchers are working to make CGMs more accurate and easier to use. People who gain the largest benefit from a CGM are those who use it every day or nearly every day. Over time, good management of glucose greatly helps people with diabetes stay healthy and prevent complications of the disease.
have fewer low blood glucose emergenciesĪ graphic on the CGM screen shows whether your glucose is rising or dropping-and how quickly-so you can choose the best way to reach your target glucose level. better manage your glucose levels every day. What are the benefits of a CGM?Ĭompared with a standard blood glucose meter, using a CGM system can help you Your doctor may suggest using a CGM system all the time or only for a few days to help adjust your diabetes care plan. are on intensive insulin therapy, also called tight blood sugar control. Your doctor may recommend a CGM if you or your child: Some models may be used for children as young as age 2. Research is underway to learn how CGMs might help people with type 2 diabetes.ĬGMs are approved for use by adults and children with a doctor’s prescription. Most people who use CGMs have type 1 diabetes. CGM glucose readings need to be checked against a standard glucose meter twice a day. You should follow your treatment plan to bring your glucose into the target range, or get help. You’ll also need to replace the CGM sensor every 3 to 7 days, depending on the model.įor safety it’s important to take action when a CGM alarm sounds about high or low blood glucose. The glucose reading should be similar on both devices. You’ll test a drop of blood on a standard glucose meter. Twice a day, you may need to check the CGM itself. With other models, you must first confirm a CGM reading with a finger-stick blood glucose test before you take insulin or treat hypoglycemia. That means you can make changes to your diabetes care plan based on CGM results alone. For example, if a child’s glucose drops dangerously low overnight, the CGM could be set to wake a parent in the next room.Ĭurrently, one CGM model is approved for treatment decisions, the Dexcom G5 Mobile. Some models can send information right away to a second person’s smartphone-perhaps a parent, partner, or caregiver. #Glucose meeter download#
You can download data to a computer or smart device to more easily see your glucose trends. You can note your meals, physical activity, and medicines in a CGM device, too, alongside your glucose levels. An alarm can sound when your glucose level goes too low or too high. 
Many CGMs have special features that work with information from your glucose readings: Special Features of a CGMĬGMs are always on and recording glucose levels-whether you’re showering, working, exercising, or sleeping.
The CGM receiver may be part of an insulin pump, as shown here, or a separate device.
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Food and Drug Administration A tiny CGM sensor under the skin checks glucose.
Several models are available and are listed in the American Diabetes Association’s product guide. Some CGMs send information directly to a smartphone or tablet. The monitor may be part of an insulin pump or a separate device, which you might carry in a pocket or purse. A transmitter wirelessly sends the information to a monitor. The sensor tests glucose every few minutes. The sensor measures your interstitial glucose level, which is the glucose found in the fluid between the cells. How does a continuous glucose monitor (CGM) work?Ī CGM works through a tiny sensor inserted under your skin, usually on your belly or arm.
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Seeing glucose levels in real time can help you make more informed decisions throughout the day about how to balance your food, physical activity, and medicines. You can also review how your glucose changes over a few hours or days to see trends. You can see your glucose level anytime at a glance.
How does a continuous glucose monitor (CGM) work?Ĭontinuous glucose monitoring automatically tracks blood glucose levels, also called blood sugar, throughout the day and night.
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