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    • 5 hours, 18 minutes ago
      Daniel Bestvater likes your comment at
      When you change your insulin pump site, do you tend to notice a spike in your blood glucose levels afterward?
      There are certain areas on my body where the insulin is more effective than others.
    • 14 hours, 52 minutes ago
      Lee Tincher likes your comment at
      When you change your insulin pump site, do you tend to notice a spike in your blood glucose levels afterward?
      I oftentimes give myself a little insulin for when I go unplugged while changing pods, depending on what my current sensor reading is.
    • 14 hours, 52 minutes ago
      Lee Tincher likes your comment at
      When you change your insulin pump site, do you tend to notice a spike in your blood glucose levels afterward?
      Always, until I began to increase the "cannula fill" amount. I found I need a good bit more than the (1.3u) to "prime the site" to have the next blood sugars be in goal. Just remember "every body is different". Darn than OmniPod does not let you change that amount, have to use "fake carbs". Something to consider.....
    • 14 hours, 52 minutes ago
      KarenM6 likes your comment at
      How well do you understand the details of your health insurance coverage?
      They change all the time. Generally not in a direction to improve my health, but to increase the money in their wallet.
    • 14 hours, 53 minutes ago
      Lee Tincher likes your comment at
      When you change your insulin pump site, do you tend to notice a spike in your blood glucose levels afterward?
      Sometimes, which makes sense to me. It seems like it takes a while til the new insulin is absorbed.
    • 19 hours, 8 minutes ago
      KSannie likes your comment at
      When you change your insulin pump site, do you tend to notice a spike in your blood glucose levels afterward?
      **cannula
    • 1 day, 1 hour ago
      Kathleen Juzenas likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      I find a using the T-Connect app I have the main features needed, CMG, bolus, battery level and remaining insulin.
    • 1 day, 5 hours ago
      TEH likes your comment at
      When you change your insulin pump site, do you tend to notice a spike in your blood glucose levels afterward?
      Sometimes, which makes sense to me. It seems like it takes a while til the new insulin is absorbed.
    • 1 day, 5 hours ago
      atr likes your comment at
      When you change your insulin pump site, do you tend to notice a spike in your blood glucose levels afterward?
      Usually the opposite. Fresh insulin sometimes sends me low.
    • 1 day, 5 hours ago
      Lawrence S. likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      Mostly pump because I want to quickly see insulin on board. Tandem on IPhone when holding my great-niece while she sleeps since getting my pump out of my pocket always wakes her ☺️. Dexcom app if not in need of insulin.
    • 1 day, 5 hours ago
      Lawrence S. likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      usually the pump; sometimes my phone.
    • 1 day, 5 hours ago
      Lawrence S. likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      My pump (Tandem X2). Since I have to carry a work phone close to 247, I don't want to deal with two phones (device overload!). As I go about my day, looking at my pump meets my needs, I can decide to bolus etc - and edit the bolus. For more in depth data review and analysis, I use the TConnect.
    • 1 day, 5 hours ago
      Lawrence S. likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      I read it from my pump.
    • 1 day, 5 hours ago
      Lawrence S. likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      On my insulin pump
    • 1 day, 5 hours ago
      Lawrence S. likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      My pump. Keep it simple.
    • 1 day, 5 hours ago
      Lawrence S. likes your comment at
      How well do you understand the details of your health insurance coverage?
      How much of this is intentionally misleading? My mail order prescription service says that can’t possibly know the cost of a medication until after it’s been shipped, which is too late to cancel or return, of course, and makes it impossible to comparison shop.
    • 1 day, 5 hours ago
      Lawrence S. likes your comment at
      How well do you understand the details of your health insurance coverage?
      I have an MA in writing and lit, but gobbledegook is gobbledegook. The fancy term is obscurantism.
    • 1 day, 5 hours ago
      Lawrence S. likes your comment at
      How well do you understand the details of your health insurance coverage?
      They change all the time. Generally not in a direction to improve my health, but to increase the money in their wallet.
    • 1 day, 6 hours ago
      Lawrence S. likes your comment at
      When you change your insulin pump site, do you tend to notice a spike in your blood glucose levels afterward?
      Usually the opposite. Fresh insulin sometimes sends me low.
    • 2 days, 3 hours ago
      Sarah Berry likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      My pump
    • 2 days, 4 hours ago
      Marty likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      One nice thing about a watch for readings is that, while it is normally redundant, you can be separated from your phone. For example, when you are in water.
    • 2 days, 4 hours ago
      Marty likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      I use both as you can’t do everything you want in one or the other
    • 2 days, 5 hours ago
      Kathy Hanavan likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      I selected “other” because my preference (smart watch, mobile phone, or pump screen) depends on circumstances. Watch for a quick and discrete view; pump if I’m preparing for a profile or activity adjustment or bolus, mobile phone if just a food bolus.
    • 2 days, 5 hours ago
      John Barbuto likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      I use both as you can’t do everything you want in one or the other
    • 2 days, 6 hours ago
      Gerald Oefelein likes your comment at
      If you use a continuous glucose monitor (CGM), where do you prefer to view your CGM readings?
      I use both as you can’t do everything you want in one or the other
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    CGM users: Do your sensors typically last for their full approved session duration? If not, how many days early does your sensor fail or fall off, on average?

    Home > LC Polls > CGM users: Do your sensors typically last for their full approved session duration? If not, how many days early does your sensor fail or fall off, on average?
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    Sarah Howard

    Sarah Howard has worked in the diabetes research field ever since she was diagnosed with T1D while in college in May 2013. Since then, she has worked for various diabetes organizations, focusing on research, advocacy, and community-building efforts for people with T1D and their loved ones. Sarah is currently the Senior Marketing Manager at T1D Exchange.

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Their collective expertise is central to our mission of improving outcomes for all people living with T1D.  “We’re excited to be working with our advisors given their deep expertise across a broad range of areas in T1D,” said Dave Walton, CEO of T1D Exchange. “Their involvement magnifies our reach, knowledge, and impact. These advisors are shaping the future of diabetes care — driving innovation across research, clinical practice, and quality improvement.”    Meet the Medical & Research Advisory Team  The T1D Exchange Medical and Research Advisory Team brings together four leading endocrinologists, each offering a unique perspective and shared commitment to advancing T1D care:    Jenise Wong, MD, PhD Pediatric endocrinologist at UCSF Benioff Children’s Hospital and Professor of Pediatrics in the Division of Endocrinology at the University of California, San Francisco Focus areas: Diabetes technology adoption and usability; health equity and access to care and technology; community-based and peer-support interventions; culturally responsive care          Jennifer Sherr, MD, PhD Pediatric endocrinologist at Yale Medicine and Professor of Pediatrics in the Division of Endocrinology at Yale School of Medicine in New Haven, Connecticut Focus areas: Clinical trials in diabetes technology (CGM and AID systems), disease-modifying treatments and immunotherapies, and emerging technologies and medications, including continuous ketone monitoring and nasal glucagon     Viral Shah, MD Adult endocrinologist at Indiana University Health and Professor of Medicine in the Division of Endocrinology and Metabolism at Indiana University School of Medicine in Indianapolis, Indiana Focus areas: Diabetes technology and adjunctive therapy trials; translational and data-driven research; T1D complications and bone health         Nestoras Mathioudakis, MD, MHS Adult endocrinologist at Johns Hopkins Medicine and Associate Professor of Medicine at Johns Hopkins University School of Medicine in Baltimore, Maryland Focus areas: AI-driven clinical support tools; EMR-based data analytics for clinical decision making; data-driven quality improvement; health equity in T1D care        This accomplished team’s expertise spans adult and pediatric endocrinology, research, and quality improvement affiliated with leading institutions nationwide. Collectively, they have authored over 500 diabetes publications and secured research funding from organizations such as the National Institutes of Health, Helmsley Charitable Trust, the American Diabetes Association, and Breakthrough T1D — while remaining actively engaged in both clinical care and research.  “These individuals represent an impressive body of work while remaining deeply involved in the day-to-day realities of diabetes care,” said Walton. Their expertise covers the full spectrum of T1D care — from AI and predictive analytics to complication prevention, automated insulin delivery, continuous glucose and ketone monitoring, GLP-1 treatments, health equity, mental health, autoantibody screening, and disease prevention.    Turning insight into impact  The team’s work goes beyond research, focusing on translating insights into real-world practice. By leveraging data to scale best practices, the goal is to drive meaningful, measurable change across clinics and communities.  “Our advisors will help to extend our impact — whether through QI strategy, research innovation, funding opportunities, or new data-driven solutions,” said Walton. “We want to take what’s working at individual centers and spread that as broadly as possible.”   He added, “As a Collaborative, we’re also focused on advanced population health strategies such as exploring predictive data models to identify risks earlier and intervene before complications even begin to happen.”    The power of the T1D Exchange Quality Improvement Collaborative  Central to this work is the T1D Exchange Quality Improvement Collaborative (T1DX-QI) — a nationwide network of clinics working together to improve care through shared data, benchmarking, and evidence-based practices.  “I’m thrilled to serve as a Medical Advisor for T1D Exchange, because I’ve seen firsthand the impact this network can have on patient care,” said Dr. Nestoras Mathioudakis. “T1D Exchange is the premier organization for quality improvement in type 1 diabetes, with unparalleled assets like a large EHR database and robust patient registry.”  He added that he is excited to apply his expertise in EHR research and big data analytics to generate real-world evidence across diagnosis, management, and outcomes.  Dr. Viral Shah echoed that perspective, reflecting on T1DX-QI's evolution: “I have been involved with T1D Exchange since its early days and have had the privilege of witnessing how it has transformed the quality of diabetes care across the United States. I’m delighted to return as a Medical Advisor.”  He emphasized the importance of accelerating impact. “I look forward to working closely with the team to accelerate the evidence generation and to help translate these insights to improve patient care.”   Dr. Jenise Wong highlighted the visible impact of T1DX-QI on the delivery of care. "I’m truly honored and grateful to be working with T1D Exchange as a Medical Advisor. 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    26 Comments

    1. Britni Steingard

      Mine last the full session if I use additional bandaging. I usually have to change the bandaging halfway through the session, though. Once the bandage starts to peel up at the edges it can get caught on my clothes and tear out the sensor, too, but if I’m careful I can remove the bandage without pulling off the sensor and then put on a new bandage.

      5 years ago Log in to Reply
    2. Henry Renn

      I currently use G6 Sensors. Generally I do get a full 10 days use out of the sensors.  I previously used G4 (5 yrs), G5 (1yr) & currently G6 for 1.75 yrs. I have had occasional times & even periods of time needing replacement sensors which Dexcom has provided. Reasons have been bad placements, applicators which failed to release sensors, excessive bleeding upon placement & once in error a defective G6 transmitter required a new sensor.  I would have been in a bad spot if Dexcom had not provided replacements. To Dexcom’s credit they were also very interested in details of failures for the occasional problems.  Without Dexcom replacements I could not rely on usual method of bg control bc of Medicare rules. I understand the reason but the supply of new sensors is strictly controlled by those rules. When I prematurely need a sensor bc of Medicare time table I cannot simply order a new one.  I could have long periods of going without sensors if Dexcom didn’t fill the gap. The use of the closed loop system of Tandem t:slim x2 & G6 would be nullified without sensors.

      5 years ago Log in to Reply
    3. Clare Fishman

      I went from G4 to G6 in April 2019. My sensors always last 10 and then I restart and get at least another 10 accurate days. I pop the transmitter out for 20 minutes and then start the sensor as though it is new. I take a picture of the code on my phone and enter that so I don’t have to calibrate twice a day. My record for useful days for one G4 sensor is 53, for G6 it is 30.

      5 years ago Log in to Reply
    4. kilupx

      The key word here in the first answer choice is “usually.” I use Dexcom g6. Three or 4 times a year a sensor will act up in the last 36 hours. Mostly it’s a frequent loss of signal but just last week it was giving me crazy highs and lows. Dexcom always sends replacements.

      5 years ago Log in to Reply
    5. Wendy Shoemaker

      Clare Fishman…how do you “pop the transmitter” out without removing the sensor?

      5 years ago Log in to Reply
    6. William Bennett

      Sensor duration is always the full time and more, for me. ADHESIVE duration OTOH is about 7 days max for a 10-day G6 sensor (and yes, I do use SkinTac). I almost always have to over-patch it to keep it going, and the patched don’t last that long either.

      5 years ago Log in to Reply
    7. Gerald Oefelein

      My sensors last the full 10 days. I use the Tegaderm overpatches that Dexcom provides at no charge to secure the sensor and I have not had a problem with loosening adhesive. To get the Tegaderm patches, contact Dexcom support.

      5 years ago Log in to Reply
    8. connie ker

      I wear the Abbott Freestyle Libre 14 day sensor. It was coming loose, falling off, or simply not accurate towards the end of the cycle. The call for help brought me transparent tapes, complimentary from USMED, that keep in the sensor in place for the full 14 days. The reader will let me know when it is time to change or if the sensor has stopped working for some reason. I live alone so this CGM is a life saver 24/7/365.

      5 years ago Log in to Reply
    9. Carole Ludwig

      I am lucky if I get the full 10 days from the sensor. Problems usually start a day or so before the 10 days with three — dashes instead of a number. It is frustrating to have to rely on finger sticks to make sure I am bolusing appropriately. My issue is probably because I am thin and don’t have much body fat when inserting a new sensor. I do use over patches that are supplied by Dexcom, free of charge and have no problem with them keeping the sensor in place. I am thrilled when I get a full 10 days. I use with a Tandem pump. When the sensor malfunctions I always get a replacement. Overall, I am happy with the closed loop system as it has made my dealing with T1d so much easier.

      5 years ago Log in to Reply
    10. Jeannie Hickey

      I usually go 20 days with my Dex6 or 4days with Guardian then tape begins to loosen at edges

      5 years ago Log in to Reply
    11. Catherine Allen

      I use the Dexcom G6 and I never have issues with the sensor falling off, but have only gotten it to last without sensor errors for the full 10 days once. It always gives me a sensor error, stops giving me readings or decides I’m below 40 no matter how many times I calibrate it. I’m lucky if I get 8 or 9 days in before one of those happens

      5 years ago Log in to Reply
    12. Anthony Harder

      My sensors last exactly the specified time, but not one minute more.

      5 years ago Log in to Reply
    13. Mary Ann Sayers

      You asked about my CGM,nothing else. The sensors have worked as they’re supposed to do: for 10 days. And that’s when I change it (as long as I get my supplies).

      5 years ago Log in to Reply
    14. Mick Martin

      It varies, and quite dramatically. My Guardian Sensor 3 sensors are intended to last 7 days. On the whole they last round about that many days. Having said that I did receive, what I believe were ‘faulty’ sensors, though Medtronic/MiniMed dispute this. They DID replace the sensors when I got in touch to complain that I’d gone through 4 sensors in 2 days. Of course, Medtronic/MiniMed asked me how long I’d been using a pump with their sensors, and whether they’d been inserted correctly, which they had, of course.

      5 years ago Log in to Reply
    15. Sherolyn Newell

      Occasionally the G6 will start giving me sensor errors on day 10, and I don’t get readings for a while. I think it stays accurate when I do get readings.

      5 years ago Log in to Reply
    16. Michelle Saunders

      My sensors are fine. I on the other had have had issues with my transmitter stop working.

      5 years ago Log in to Reply
    17. Lucia Maya

      I use a G6 and typically get close to 20 days from each one, after restarting it. They’re quite accurate during the 2nd 10 days as well. (YouTube has lots of videos on how to do this.)

      5 years ago Log in to Reply
    18. Eve Rabbiner

      Sometimes get weird readings on last day and bizarre readings for the first 12 hours or so of the sensor. Pretty annoying. I used to hack the G5 to last longer. Not sure if it’s worth it with the G6 if the readings are off. I’ll check Youtube and see. Thanks for the tip.

      5 years ago Log in to Reply
    19. G. Dzag

      OK… During the Summer my Dexcom G6 was always coming loose, even with the provided clear patches that extend the adhesive ability of the sensor. I ride a bike on hours long, fast bike rides in the heat of Summer when accurate readings are very important. I dealing with errant readings and loosely attached sensors all Summer. I wish there was a better solution for people, like me, who exercise and sweat a lot I’d be lucky to get 6 days out of a sensor in hot weather. Winter time I’m fine.

      5 years ago Log in to Reply
    20. Jim Rogers

      I’m encouraged by the people here that can extend their G6 sensors to work past 10 days, AWESOME! On average 2 out of every 3 G6 sensors I use start failing about 2 days before the 10 days are up. Dexcom is good with replacing them but I get tired of having to call them and get replacements alot! I also calibrate with finger sticks to check their accuracy and have been surprised at times how far off they can be, especially after I start getting error messages. I love the technology of the CGM’s and think they have lowered my diabetes stress levels immensely because I try to stay in the normal lower glucose levels and don’t worry about it until the alarms tell me to. I just think that if they promote the sensors to last 10 days then that should be the minimum of days they work.

      1
      5 years ago Log in to Reply
    21. Sally Numrich

      I don’t usually have any issue with my sensors ending early. Yes, I have had a few over the years, but a quick call to Tandem & I get a replacement.

      5 years ago Log in to Reply
    22. Maureen Helinski

      Usually my G6 last 10 days, but when not I restart them for only one or two days. Then they are not as accurate.

      5 years ago Log in to Reply
    23. Gary Taylor

      I use the Medtronic Sensor 3. Mostly, they last the full 7 days they are approved for. Occasionally they quit early. I will call and get a replacement. For the ones that last the full 7 days, I will recharge the transmitter and restart the sensor. I usually get an additional 3 to 7 days.

      5 years ago Log in to Reply
    24. Rose Ryder

      My G6 rarely makes it to 10 days. I call Technical Services so it is tracked. Maybe the label is too optimistic??

      1
      5 years ago Log in to Reply
    25. HMW

      I use the Medtronic guardian 3 sensors. They usually last the full 7 day wear time but frequently become more inaccurate by the 7th day or start “updating” or fail in the last few hours.

      5 years ago Log in to Reply
    26. Bonnie Lundblom

      I use the Dexcom 6 which usually lasts close to the 10 days it’s supposed to last. Every now and then I have a box of sensors that simply aren’t accurate, my Contour Next and the Dexcom are very different and despite calibration remain that way. I’ve talked to Dexcom about this and was told to call them immediately and have that sensor replaced. I now use only my arms since that site consistently gives me the best accuracy.

      5 years ago Log in to Reply

    CGM users: Do your sensors typically last for their full approved session duration? If not, how many days early does your sensor fail or fall off, on average? Cancel reply

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