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    • 8 minutes ago
      TEH likes your comment at
      Have you ever been told you couldn’t physically do something because you live with diabetes?
      Maybe not a physical restriction, but decades ago I was told I was ineligible to get a pilot’s license.
    • 10 minutes ago
      Lawrence S. likes your comment at
      Have you ever been told you couldn’t physically do something because you live with diabetes?
      Maybe not a physical restriction, but decades ago I was told I was ineligible to get a pilot’s license.
    • 10 minutes ago
      Lawrence S. likes your comment at
      Have you ever been told you couldn’t physically do something because you live with diabetes?
      Yes. It had to do with a job that required me to drive delivery vans to clean and park them on the company's lot.
    • 10 minutes ago
      Lawrence S. likes your comment at
      Have you ever been told you couldn’t physically do something because you live with diabetes?
      Long time ago - told there were certain occupations I would not be allowed to do because if T1D. Pilot, air traffic controller, military, etc.
    • 13 hours, 22 minutes ago
      Patricia Dalrymple likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      Being at high risk for dementia (both genetic and behavioral) and at an advanced age while still making very complex decisions about pump, CGM, and data issues Phew! What a premise! Is the optimal strategy for T1D management most likely to be MDI by caregivers in assisted living?
    • 14 hours, 35 minutes ago
      lis be likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      Being at high risk for dementia (both genetic and behavioral) and at an advanced age while still making very complex decisions about pump, CGM, and data issues Phew! What a premise! Is the optimal strategy for T1D management most likely to be MDI by caregivers in assisted living?
    • 21 hours, 9 minutes ago
      Deborah Wright likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      It's rare I have questions, but if I do, I send a message to my Endocrinologist, and she responds quickly.
    • 21 hours, 11 minutes ago
      Deborah Wright likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      I use the patient portal to ask my doctor.
    • 21 hours, 12 minutes ago
      Deborah Wright likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      I seldom have any questions other than RX refill request which I submit through the patient portal. If I do have treatment questions, I typically do my own research, and if not satisfied with what I find out, I submit a question in the portal.
    • 21 hours, 12 minutes ago
      Deborah Wright likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      When I come up with a question between visits, I usually just do some research.
    • 22 hours, 45 minutes ago
      Mike S likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      I use the patient portal to ask my doctor.
    • 22 hours, 45 minutes ago
      Mike S likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      Being at high risk for dementia (both genetic and behavioral) and at an advanced age while still making very complex decisions about pump, CGM, and data issues Phew! What a premise! Is the optimal strategy for T1D management most likely to be MDI by caregivers in assisted living?
    • 23 hours, 2 minutes ago
      Lawrence S. likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      How to avoid the rebounding effects of a low blood sugar.
    • 23 hours, 2 minutes ago
      Lawrence S. likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      After making pump setting changes due to new Mounjaro, why are my post meal glucose levels so high and how do we fix it?
    • 23 hours, 2 minutes ago
      Lawrence S. likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      Will I be okay during pregnancy, especially now that I'm over 40?
    • 23 hours, 5 minutes ago
      Lawrence S. likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      Being at high risk for dementia (both genetic and behavioral) and at an advanced age while still making very complex decisions about pump, CGM, and data issues Phew! What a premise! Is the optimal strategy for T1D management most likely to be MDI by caregivers in assisted living?
    • 23 hours, 35 minutes ago
      Carrolyn Barloco likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      Being at high risk for dementia (both genetic and behavioral) and at an advanced age while still making very complex decisions about pump, CGM, and data issues Phew! What a premise! Is the optimal strategy for T1D management most likely to be MDI by caregivers in assisted living?
    • 23 hours, 36 minutes ago
      Carrolyn Barloco likes your comment at
      Between your regular T1D care visits, what questions tend to come up that you wish you could ask a diabetes expert? Share your thoughts in the comments.
      Will I be okay during pregnancy, especially now that I'm over 40?
    • 1 day, 10 hours ago
      kilupx likes your comment at
      Do you currently take metformin?
      Before I was correctly diagnosed the primary care physician said I must be type 2 due to my age of 36, even though I was always very thin and had rapidly lost even more weight. He prescribed metformin- I proceeded to get sicker and sicker. Finally got to an endocrinologist who tested and said I was T1D, and I was put immediately on insulin. What a game changer.
    • 1 day, 10 hours ago
      kilupx likes your comment at
      Do you currently take metformin?
      Other I took Metformim for 3 months when I was first incorrectly diagnosed with T2. I am very sensitive to insulin and don’t need it yet.
    • 1 day, 20 hours ago
      Kristi Warmecke likes your comment at
      Do you currently take metformin?
      Wow!
    • 1 day, 20 hours ago
      Kristi Warmecke likes your comment at
      Do you currently take metformin?
      I've had T1D for 50 years. I started taking Metformin 9 months ago. I take full dose at bedtime to manage my morning glucose rise. It keeps the liver from releasing glucose. It has helped.
    • 1 day, 23 hours ago
      Lawrence S. likes your comment at
      Do you currently take metformin?
      I took it for four years when I was diagnosed with T2. After four years of not being able to control my bs I asked my endocrinologist if I could go on insulin and he said yes and the T2 drugs stopped.
    • 1 day, 23 hours ago
      Gerald Oefelein likes your comment at
      Do you currently take metformin?
      Other I took Metformim for 3 months when I was first incorrectly diagnosed with T2. I am very sensitive to insulin and don’t need it yet.
    • 1 day, 23 hours ago
      Gerald Oefelein likes your comment at
      Do you currently take metformin?
      I took it for four years when I was diagnosed with T2. After four years of not being able to control my bs I asked my endocrinologist if I could go on insulin and he said yes and the T2 drugs stopped.
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    If you use an insulin pump, please select the option which most accurately completes the statement for you: The last time I changed my pump site, I filled my reservoir/cartridge/pod with enough insulin to last me…

    Home > LC Polls > If you use an insulin pump, please select the option which most accurately completes the statement for you: The last time I changed my pump site, I filled my reservoir/cartridge/pod with enough insulin to last me...
    Previous

    When treating a low (i.e, less than 70 mg/dl or 3.9 mmol/l) how often do you over treat, resulting in high blood glucose levels?

    Next

    How well do you understand the details of your health insurance coverage (e.g., which medications are covered, how much a service will cost, the steps you need to take about getting a service or product covered, etc.) Please select the number or statement that best represents your knowledge.

    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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    37 Comments

    1. LizB

      I had been filling it to the maximum 300 units but once or twice it seemed like the insulin was becoming less effective after 8 days. I know insulin is approved for 7 days in a pump but I usually don’t have problems going longer. Now I try to fill it with enough to last a week. I still end up with enough for 8 days most of the time. I hate filling reservoirs so I try to get away with as much as I can!

      4
      3 years ago Log in to Reply
    2. George Lovelace

      1st Fill is just short of 300, Second Fill is short of 275 as there is insulin remaining from 1st Fill. I replace the Cartridge next.

      3 years ago Log in to Reply
    3. Brian Johnson

      I change my sites exactly every 3 days, but change my reservoir every 6 to 7 days. I very seldom ever change them together at the same time.

      3 years ago Log in to Reply
      1. Bea Anderson

        What pump do you use? I used to use Medtronic pump. This sounds practical and a bit of a timesaver.

        3 years ago Log in to Reply
      2. Lori COLLINS

        Same here. I use a Medtronic 770G and 300 units of insulin lasts 14–16 days. I cange my infusion set every 3 or 4 days (or whenever I have unexplainable, unresponsive highs). I use the same tubing for the whole reservoir. No problems w/ insulin getting old, stale, or less effective even though I live in sunny Florida and spend a fair amount of time outdoors.

        3 years ago Log in to Reply
    4. Gerald Oefelein

      I fill my reservoir with 250 units of insulin and use until less than 20 units remain. I do not reuse reservoir.

      3 years ago Log in to Reply
    5. Nevin Bowman

      I am supposed to change my site every 2 days, but I already only fill my reservoir halfway, which lasts 3 days.

      3 years ago Log in to Reply
    6. AimmcG

      I fill the reservoir until it’s full. How long it lasts varies but I would say 5 days?

      1
      3 years ago Log in to Reply
    7. Kris McDonald

      Omnipod has a 100 unit minimum per pod. I often have between 20 and 30 units left when pod has to be changed on day 3.

      3 years ago Log in to Reply
      1. Bea Anderson

        I use Omnipod 5. According to the manual it’s minimum is 85 units. That is when the beep occurs. I continue filling to 120 and have little left crossing the 3 day finish line!

        1
        3 years ago Log in to Reply
    8. Bea Anderson

      “Exactly” might be better termed my goals! 3 days is best goal. My goal also is to have enough insulin to exceed 3 days. While never going to 4 days, my insulin needs vary.

      2
      3 years ago Log in to Reply
    9. Carrolyn Barloco

      My Tandemx2 holds 3ml in its reservoir. I fill it and how long it lasts varies with what I eat and do. I use every unit of insulin prior to changing my infusion set.

      4
      3 years ago Log in to Reply
    10. Lawrence S.

      I try for 3 days, but it is never “Exactly.” In the summer time I fill less because of the heat. In the winter, I fill slightly more because I am less worried about the insulin durability.

      1
      3 years ago Log in to Reply
    11. Hark87

      More than 2 but less than 3. I run daily, and my sites (tandem) sometimes get irritated or start to fall off due to sweat (summer months, stomach/thigh locations). I fill to 120 units and sometimes have a little leftover. It really sucks having to change the site that frequently, and the fact that out of pocket costs are beyond ridiculous, but the pump is literally a godsend and I’d be lost without it.

      1
      3 years ago Log in to Reply
    12. Donald Cragun

      I change my site every three days. I replace my reservoir when it is empty (and fill it with a 300 units of insulin).

      1
      3 years ago Log in to Reply
    13. anj1832

      This question doesn’t make sense to me, maybe someone can explain it better. When I change a pump site (infusion set) I do not change my cartridge as well. I only change my cartridge when it runs out of insulin.. then I fill it up and it lasts however many days it takes.

      4
      3 years ago Log in to Reply
      1. Trina Blake

        Me too

        1
        3 years ago Log in to Reply
    14. Amanda Barras

      I always fill mine up with 300 U but it only lasts me 2 days. I have to refill again to get past 2 days or change everything out every other day.

      3 years ago Log in to Reply
    15. Linda Zottoli

      In summer months, I try to fill my reservoir to last about 3 days: I have had trouble with insulin not working as well after getting hot. But in cooler months (like now) I fill it to at least twice that. But, in either case, I change reservoirs when it gets down to 4 units, which only occasionally occurs when I’m changing the infusion set every 3 days.

      So, I accumulate extra tubing. One year I decorated an extra small Christmas tree with it: I though it was cute, but my family wasn’t impressed. I’ve also used it to improvise a clothes line while traveling.

      3 years ago Log in to Reply
    16. Mike S

      In winter, I fill my Omni with the max and after the 3 days rescue any leftover insulin and use it in next pod. Sometimes I have none left. (thanksgiving!) other times I have re-used over 100 units. Seriously depends on what’s happening in life. (Summer is different. I’m not sure if it’s because I’m outside, but the insulin never seems as effective by day 3, so I’m less likely to fill to the max. Don’t want to waste that liquid gold.)

      1
      3 years ago Log in to Reply
    17. Jeannie Hickey

      Like others, I fill my reservoir full & use it for about 9 days, changing the site every 3 days, reusing the tubing. Then I refill that reservoir again, 3-4 times. If reservoir & site happen at the same time I’ll even add extra insulin that will fill the tubing.

      2
      3 years ago Log in to Reply
      1. Stephen Woodward

        Diabadass, for sure.

        3 years ago Log in to Reply
    18. Mark Schweim

      I RARELY change/refill the cartridge when I change sites. Last time I changed sites I didn’t change pump cartridges until the following day.
      But when I fill the cartridge, I put around 230 units in the cartridge and that’s enough to last me somewhere between 7 and 10 days.
      Even when I lived in Southern Alabama working outside in +100 weather, even when pump cartridge didn’t need changing/refilling until day 11, I never noticed any difference in the Insulin effectiveness on day 10+ compared to the effectiveness of the Insulin straight from the Insulin vial.

      3 years ago Log in to Reply
    19. Retired and glad

      I fill my reservoirs to the limit, which is 300 units. Occasionally I need to change the site because it gets “blown” and the insulin is less effective. Most of the time, however, I let it go until the insulin in the reservoir runs out without any serious effect. Typically it lasts five or more days.

      1
      3 years ago Log in to Reply
    20. Janis Senungetuk

      I fill the cartridge with approximately 260 units and use it until there are less than 10 units left. I change the infusion set ever 4 days, usually twice before changing the cartridge. My activity level and amount that I eat has completely changed over the past three years because of pandemic isolation. When that changes it will effect my insulin usage and length of time between cartridge changes.

      3 years ago Log in to Reply
    21. Carol Meares

      I am on Omnipod 5. If there is a significant amount of insulin leftover I will add it to my next pod. There is usually not enough to bother.

      1
      3 years ago Log in to Reply
    22. Beckett Nelson

      I just fill it. It could last up to 6days

      1
      3 years ago Log in to Reply
    23. Ms Cris

      More than 2, less than 3 days for the following reasons:
      1) my tandem pump runs hot, but tandem insists it’s fine. I can never carry it in a pocket, etc., Only on a clip, exterior with air flow. My insulin deteriorates in less than 48 hours. No question. By then I’m running a higher temp basal. If I change the insulin, but not the site, and forget to try off the higher temp basal….I go low within an hour.
      2) I need only 12u per day. Unfortunately I have to fill with 60u plus 10 for tubing. So my pump wastes half of my insulin.
      I sometimes try to go 3 days, but really not worth the consequences.

      3 years ago Log in to Reply
    24. Molly Jones

      It was nice to see the responses. I can now not waste so much of my insulin as my average daily amount is about 14units and I have to put at least five days into the cartridge for it to be accepted. The site can become irritating after four days or more.
      I will try to fill it and use my cartridge more than once.

      3 years ago Log in to Reply
    25. Becky Hertz

      I put in 250 units at a time. Sometimes it lasts 2-3 days and sometimes it lasts 4-5 days. Obviously, I don’t eat the same thing everyday nor does my body utilize insulin the same everyday.

      2
      3 years ago Log in to Reply
    26. mbulzomi@optonline.net

      I answered, more than three but less than four days. However, I have skipped my lunch many times is the process of losing weight, so I may be able to squeeze four days if I need it to change the site when my Sensor is also due to be changed. If you are wearing a sensor and it needs to be changed every 10 days, but the Pump, sute needs to be changed every three days. So, I try to change my site every 3 1/3 days. Great for the vendors!!!

      3 years ago Log in to Reply
    27. Lenora Ventura

      My site changes do not correspond with my cartridge refills. I change them both when they are empty/need to be changed.

      2
      3 years ago Log in to Reply
    28. Stephen Woodward

      The insulin manufacturer documentation states that it is good from 6-9 days in a cartridge depending on the pump approved insulin. For 30 years I have fill all cartridges full up every time I fill a cartridge. Sites are always changed every 3 days or so.

      3 years ago Log in to Reply
    29. Sealani Weiner

      I don’t really calculate how many days; I just look to see when it is running out. Sometimes the only way I know to change is the low insulin alert. In the US, I would have to change every two or three days because my skin gets raw. I’m in Mexico and my skin doesn’t get irritated, so I just went four days before changing the site today.

      3 years ago Log in to Reply
    30. Bwarschoff

      I fill the cartridge completely and use until it runs out or until it will be difficult to change if I don’t change the cartridge now.

      3 years ago Log in to Reply
    31. PamK

      Unfortunately, I have to fill my cartridges with enough insulin to last me at least 5 days. If I fill it with less than that it won’t reach the minimum amount needed for the pump to recognize the new cartridge.

      3 years ago Log in to Reply
    32. T1D4LongTime

      Tandem’s cartridge and infusion set design amounts to a lot of waste if you fill more than the 3 days (that’s all I can get a site to last these days). That’s assuming you don’t just change the site and not the cartridge (which is what I do). I load 200 units (5-6 days), so 2 site changes. Will account for high BG days and/or illness needs.

      3 years ago Log in to Reply

    If you use an insulin pump, please select the option which most accurately completes the statement for you: The last time I changed my pump site, I filled my reservoir/cartridge/pod with enough insulin to last me... Cancel reply

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