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    • 7 hours, 51 minutes ago
      KarenM6 likes your comment at
      How often do you intentionally run your glucose slightly higher during certain activities (e.g., driving, public speaking, exercise)?
      The question is poorly worded. If I am doing those things I run my blood sugar higher if not I don’t. A better question might be how often do I do those things. Since I do them often I run high often on purpose. I cannot be sub 100 and do them.
    • 7 hours, 52 minutes ago
      KarenM6 likes your comment at
      How often do you intentionally run your glucose slightly higher during certain activities (e.g., driving, public speaking, exercise)?
      Exercise affects me profoundly at an older age (and has the physics of momentum and driving at ANY age!). Answer: often/
    • 8 hours, 57 minutes ago
      Richard likes your comment at
      How often do you exercise? Share more in the comments about your exercise routine.
      I have to try my best to move my Leg's for at least 30 minutes a day. If not something around that.
    • 8 hours, 59 minutes ago
      Richard likes your comment at
      How often do you exercise? Share more in the comments about your exercise routine.
      I exercise daily! I ski, bicycle, walk/jog, and workout at the gym. I currently have a rotator cuff injury so I limit my trips to the gym.
    • 10 hours, 34 minutes ago
      atr likes your comment at
      How often do you intentionally run your glucose slightly higher during certain activities (e.g., driving, public speaking, exercise)?
      During Ramadhan I keep it slightly elevated so that I don’t have to break the 12 hour fast.
    • 10 hours, 35 minutes ago
      atr likes your comment at
      How often do you intentionally run your glucose slightly higher during certain activities (e.g., driving, public speaking, exercise)?
      when I am traveling, I will let it run a little higher because I don't know what I'll be doing at any given moment.
    • 10 hours, 36 minutes ago
      atr likes your comment at
      How often do you intentionally run your glucose slightly higher during certain activities (e.g., driving, public speaking, exercise)?
      The question is poorly worded. If I am doing those things I run my blood sugar higher if not I don’t. A better question might be how often do I do those things. Since I do them often I run high often on purpose. I cannot be sub 100 and do them.
    • 10 hours, 45 minutes ago
      Lawrence S. likes your comment at
      How often do you guess or estimate carbohydrate amounts rather than calculating precisely?
      Been doing it for so long it's mostly estimation at this point. Every once in a while at home I'll measure out exact portions of rice, pasta, etc to remind myself just how SMALL portions should be as I tend to let them get a little bigger over time. (wishful thinking) Very helpful to have that image in mind at restaurants where portions tend to be way larger than a single serving.
    • 10 hours, 48 minutes ago
      Lawrence S. likes your comment at
      How often do you intentionally run your glucose slightly higher during certain activities (e.g., driving, public speaking, exercise)?
      Exercise affects me profoundly at an older age (and has the physics of momentum and driving at ANY age!). Answer: often/
    • 1 day, 6 hours ago
      KarenM6 likes your comment at
      How confident are you about having consistent access to the diabetes supplies and medication you need?
      Moderately. My doctor and pharmacy are awesome, my insurance and durable medical equipment supplier, not so much. The excessive red tape of paper to get DME supplies shipped is almost always a nightmare!
    • 1 day, 6 hours ago
      KarenM6 likes your comment at
      How confident are you about having consistent access to the diabetes supplies and medication you need?
      Run, don’t walk from Edgepark! Read my response to Nevin Bowman above! (Hint: the company I was referring to in that post was Edgepark)
    • 1 day, 6 hours ago
      KarenM6 likes your comment at
      How confident are you about having consistent access to the diabetes supplies and medication you need?
      I once had a supplier withhold old pump supplies while refusing to ship the order for a new pump and I was on a 3-way call with insurance and got to listen to DME lie directly to Insurance about it and then I had the pleasure of interjecting and getting to call them a liar! I would have been more vindicated if it actually accomplished anything, but after I finally got my shipment I fired that DME and never looked back. The red tape that insurance insists on for DME is excessive for chronically ill patients!
    • 1 day, 6 hours ago
      kristina blake likes your comment at
      How often do you guess or estimate carbohydrate amounts rather than calculating precisely?
      After doing this weighing and measurements you get pretty good at estimating
    • 1 day, 8 hours ago
      Patricia Dalrymple likes your comment at
      How often do you guess or estimate carbohydrate amounts rather than calculating precisely?
      I chose "Often". If I eat something packaged with a nutrition label, I'll use the carbs listed on the label. If I eat a plate of food, at home or at a restaurant, I estimate.
    • 1 day, 9 hours ago
      Kathy Hanavan likes your comment at
      How often do you guess or estimate carbohydrate amounts rather than calculating precisely?
      Been doing it for so long it's mostly estimation at this point. Every once in a while at home I'll measure out exact portions of rice, pasta, etc to remind myself just how SMALL portions should be as I tend to let them get a little bigger over time. (wishful thinking) Very helpful to have that image in mind at restaurants where portions tend to be way larger than a single serving.
    • 1 day, 9 hours ago
      Kathy Hanavan likes your comment at
      How often do you guess or estimate carbohydrate amounts rather than calculating precisely?
      Yes, for me never weighing or measuring but actively using the Calorie King book and app for several years I have most things memorized or I can make a decent assessment.
    • 1 day, 9 hours ago
      Kathy Hanavan likes your comment at
      How often do you guess or estimate carbohydrate amounts rather than calculating precisely?
      After doing this weighing and measurements you get pretty good at estimating
    • 1 day, 9 hours ago
      Kathy Hanavan likes your comment at
      How often do you guess or estimate carbohydrate amounts rather than calculating precisely?
      I chose "Often". If I eat something packaged with a nutrition label, I'll use the carbs listed on the label. If I eat a plate of food, at home or at a restaurant, I estimate.
    • 1 day, 10 hours ago
      Lawrence S. likes your comment at
      How often do you guess or estimate carbohydrate amounts rather than calculating precisely?
      I chose "Often". If I eat something packaged with a nutrition label, I'll use the carbs listed on the label. If I eat a plate of food, at home or at a restaurant, I estimate.
    • 1 day, 11 hours ago
      Amanda Barras likes your comment at
      How confident are you about having consistent access to the diabetes supplies and medication you need?
      Well, since I'm waiting on pump supplies for 2 months now, my confidence is slipping.
    • 1 day, 11 hours ago
      Amanda Barras likes your comment at
      How confident are you about having consistent access to the diabetes supplies and medication you need?
      I am confident about access to my medical needs in the immediate future. I am not a fortune teller and have no idea what my access to medical supplies will be like in a year or longer. I don't take my spoiled lifestyle for granted.
    • 1 day, 11 hours ago
      Amanda Barras likes your comment at
      How confident are you about having consistent access to the diabetes supplies and medication you need?
      I've often said that "hoarding": is a character asset for T1D people. I try to purchase (paying out of pocket) a 60-90 day supply - just in case). I have a new health plan,. effective 1/1/26. AS we know, getting an appt with an HCP isn't easy. They have to be accepting new patients, they have to be in network etc. Once I knew what my new policy would be (nov 2025) I made an appt. The earliest appt I could get was in Sept 2026. Thank goodness for my stash of device supplies. I had to go to Urgent care to get an Rx for insulin (my old HMO plan "doesn't do bridge refills"). So yeah, I worry, and plan for hiccups in the supplies process.
    • 1 day, 11 hours ago
      Amanda Barras likes your comment at
      How confident are you about having consistent access to the diabetes supplies and medication you need?
      I am worried about the changes to Medicare making no provision for getting an immediate replacement if a pump fails. It sounds like we will have to get these from the suppliers instead of a warranty replacement from Tandem themselves (or whatever brand you use). Pumps will be rented and will have to be returned so they can verify the problem before replacing them, which is ridiculous. Meanwhile, Medicare would not pay for us to get long acting insulin as a temporary replacement for the basal.
    • 1 day, 11 hours ago
      Amanda Barras likes your comment at
      How often do you guess or estimate carbohydrate amounts rather than calculating precisely?
      After doing this weighing and measurements you get pretty good at estimating
    • 1 day, 11 hours ago
      Derek West likes your comment at
      How often do you guess or estimate carbohydrate amounts rather than calculating precisely?
      I chose "Often". If I eat something packaged with a nutrition label, I'll use the carbs listed on the label. If I eat a plate of food, at home or at a restaurant, I estimate.
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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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