1. Get the Diabetes Forum App for your phone - available on iOS and Android.
    Dismiss Notice
  2. Guest, we'd love to know what you think about the forum! Take the Diabetes Forum Survey 2021 »
    Dismiss Notice
  3. Diabetes Forum should not be used in an emergency and does not replace your healthcare professional relationship. Posts can be seen by the public.
    Dismiss Notice
  4. Guest, stay home, stay safe, save the NHS. Stay up to date with information about keeping yourself and people around you safe here and GOV.UK: Coronavirus (COVID-19). Think you have symptoms? NHS 111 service is available here.
    Dismiss Notice
Dismiss Notice
Find support, ask questions and share your experiences. Join the community »

Dexcom sensor life .

Discussion in 'Insulin Pump Forum' started by richyb, Mar 16, 2017.

  1. richyb

    richyb Type 1 · Well-Known Member

    Messages:
    267
    Likes Received:
    146
    Trophy Points:
    83
    I have recently had a Dexcom and am using it with an animas pump. But the sensor life has been dissapointing. 13 days,12 days , 8 days.
    and yet I have not knocked them, got them wet or have them come loose. The last one I had a wide bandage over with a hole in and lasted just 8 days. I even left one on for 3 weeks and occasionally it would work though not good or accurate. These have also had skin tac applied first.
    I cannot afford to pay £50 every week so will occasionally use it. I guess they are only supposed to last one week trouble is so many say they last longer. So how do some of you get them to last a long time advice please.
     
    • Like Like x 1
  2. catapillar

    catapillar Type 1 · Well-Known Member

    Messages:
    3,390
    Likes Received:
    2,892
    Trophy Points:
    198
    I just stick it on and leave it until I'm not getting any readings and just ??? That's pretty much all the thought I put into it.

    I definitely get it wet. I shower.

    I probably occasionally knock it.

    I don't use skin tac. If the adhesive gets particularly peely I might tape it down with micropore.

    With G4 I was getting three weeks of decent readings. Either you can or you can't get them to last, it might just be individual, maybe the way your body heals around the sensor doesn't let it keep functioning. Keeping well hydrated is supposed to help. Calibrate while you are in normal range and flat lining. Don't take paracetamol.
     
    • Useful Useful x 1
  3. CarbsRok

    CarbsRok Type 1 · Well-Known Member

    Messages:
    4,696
    Likes Received:
    5,286
    Trophy Points:
    178
    @richyb the best life span is when the sensor is placed on the arm.
     
    • Like Like x 1
  4. azure

    azure Type 1 · Expert

    Messages:
    9,780
    Likes Received:
    7,400
    Trophy Points:
    178
    In a similar place to the Libre? Do you know why the arm works best?
     
  5. CapnGrumpy

    CapnGrumpy Type 1 · Well-Known Member

    Messages:
    299
    Likes Received:
    373
    Trophy Points:
    103
    I built an xDrip kit (mostly to see how it worked) and have lent it to a friend using a Vibe. She has said that the pump only picks up her G4 Dexcom for 2 weeks, but the xDrip will pick it up for 4 weeks.

    The paracetamol thing seems to be a bit individual - some people read massively high if they take it - and I've avoided it ever since starting on a Dexcom, but others have had no issues.

    Sensor lifespan is also variable - I've seen traces from people who are getting great results after 4 or 5 weeks, but I only reliably get around 2 on a G5. I think it comes down to how much sensor noise you tolerate. With the official software, any time the sensor can't give an accurate reading, you get ??? but this is in place of giving you a reading that you might take as gospel. Sometimes drinking some water or just leaving it will allow it to recover.
     
  6. richyb

    richyb Type 1 · Well-Known Member

    Messages:
    267
    Likes Received:
    146
    Trophy Points:
    83
    I am thinking the sensor measures the fluid when it goes into the sensor via the tube that goes into you and by putting it on an arm it could be downhill. Is this corrcct.
    thankyou for a reply...
     
    #6 richyb, Mar 17, 2017 at 7:24 PM
    Last edited: Mar 17, 2017
  7. richyb

    richyb Type 1 · Well-Known Member

    Messages:
    267
    Likes Received:
    146
    Trophy Points:
    83
    thankyou I will try that next, probably with the angle going down to sensor is this best way round ?
     
  8. richyb

    richyb Type 1 · Well-Known Member

    Messages:
    267
    Likes Received:
    146
    Trophy Points:
    83
    Thanks for your help. I left my last one on for a further 2 weeks but only got about 4hours usefull use. I sometimes find drinking water helps but not for long. I did'nt really want to go to the expense of x drip as I have spent £250 and not got much use out of it. I did take the transmitter off and noticed it was quite wet inside on one. Seemed to be my fluid. I dryed it, even washed it out with water then dryed it but no good
     
  9. Deleted Account

    Deleted Account · Guest

    I am on my second Dexcom sensor (thankfully, I was given four on a free trial). My first lasted about 9 days. When I contacted the Johnson and Johnson sales rep who gave me the trial, she explained the problem was likely to be that my body became "distressed" around the sensor. This did not surprise me as it was starting to itch (although I used SkinTac).
    I am experimenting on the best place to put it. I have read before that the arm may be the best in terms of lifespan. However, it is not a great place in terms of aesthetics and having muscly arms (I work out), I struggled to find enough fat to place the Libre (I got a free trial of that too).
    I have put my latest sensor a little higher on my stomach but avoiding my waistband: where most people would have a spare tyre. So far I have only been wearing it 5 days so cannot comment on its longevity.
     
  10. tim2000s

    tim2000s Type 1 · Expert
    Retired Moderator

    Messages:
    8,914
    Likes Received:
    11,783
    Trophy Points:
    198
    Hi @helensaramay I've used Libre and Dex sensors when I was down at 9% body fat on my arms, and had no issues at that level, so I think you'd be surprised how low you can get without issues....
     
  11. Chas C

    Chas C Type 1 · Well-Known Member

    Messages:
    872
    Likes Received:
    465
    Trophy Points:
    123
    I've been using my arm for some years and get 4-5 wks from each sensor, I did have one that lasted 3 wks but that was my shortest.
     
  12. Djdiabetic

    Djdiabetic Type 1 · Active Member

    Messages:
    25
    Likes Received:
    9
    Trophy Points:
    23
    chas C where can I buy dexcom sensors in Scotland? im assuming online? also I can use my iphone with this yes? and will I need anything else apart from the sensors and my iphone?
     
  13. Chas C

    Chas C Type 1 · Well-Known Member

    Messages:
    872
    Likes Received:
    465
    Trophy Points:
    123
    Dexcom UK is who you need to purchase them from, there are two types, the G4 and the G5. The G5 works with an iPhone. The G4 needs its own receiver.
     
    • Like Like x 1
  14. Djdiabetic

    Djdiabetic Type 1 · Active Member

    Messages:
    25
    Likes Received:
    9
    Trophy Points:
    23
    So how would I order this? I can't see anything on their website?
     
  15. Winterwatch

    Winterwatch Type 1 · Well-Known Member

    Messages:
    50
    Likes Received:
    26
    Trophy Points:
    38
    Click on the shopping basket (get started), then "interested in the Dexcom CGM/get started here", fill out your details and they will send you an email with a price listing/contact numbers for ordering etc.
     
  16. Chas C

    Chas C Type 1 · Well-Known Member

    Messages:
    872
    Likes Received:
    465
    Trophy Points:
    123
    • Like Like x 1
  • Meet the Community

    Find support, connect with others, ask questions and share your experiences with people with diabetes, their carers and family.

    Did you know: 7 out of 10 people improve their understanding of diabetes within 6 months of being a Diabetes Forum member. Get the Diabetes Forum App and stay connected on iOS and Android

    Grab the app!
  • Tweet with us

  • Like us on Facebook