The importance of pump settings

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This topic contains 10 replies, has 9 voices, and was last updated by  Annette A 6 years, 6 months ago.

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  • #6126

    Anonymous

    Yesterday morning I was woken up by my pump/cgm alarm warning me of low blood sugar. I cleared the alarm and then saw an active insulin delivery screen showing 4.5units out of a 10unit bolus had so far been delivered. I hastily disconnected everything.

    The first time I knowingly touched my pump was to clear the alarm yet somehow 1 minute earlier I had selected a 10u bolus with a blood sugar of 3.7. I cannot comprehend how I managed this action, 10 units is more than I bolus in a day.

    I checked with Medtronic and the only explanation was that I must have somehow done this myself.

    I have never given the maximum bolus setting on my pump a thought. On checking, it was set at 10 units, about 6 units more than I ever bolus for any meal. Last night I reduced it to 0.1u and also locked the keys for safety sake.

    Has anybody else managed to operate a pump without any recollection. I am still a nervous gibbering wreck today after considering the potential for disaster if I had not cleared the alarm when I did and noticed the active insulin delivery screen.

  • #9532

    Tim
    Keymaster

    Nope, it’s never happened to me. So far. Probably a good idea to have a look at the max delivery settings.

    Only 10u a day? Coo! The magic pump calculator says that I’ve shoved in an average of 57.57u per day over the last 14 days.

  • #9533

    Anonymous

    My magic pump calculator 14 day average is saying 26.1u, a bit higher than usual thanks to my extra 10u just for the hell of it at 7am yesterday.

  • #9534

    Peter Childs
    Participant

    It always shocks me the range of amount of insulin different diabetics need. I’m on 85units a day. mind you I don’t use a pump but I doubt that makes much difference….

  • #9535

    Anonymous

    I have managed a similar through sleepy button pressing. I had been struggling with lows at the start of the night and taken on multiple doses of fast acting sugar. Eventually my blood sugars started to behave themselves and I settled down to get some sleep. Once asleep I somehow managed to to put my temp basal rate to 0% for 2 hours, the resulting blood sugar was not pretty!

  • #9536

    lizz
    Participant

    Yes, I have. I lazily press the buttons on my pump through my clothing to turn off alarms to bolus for meals or to do a blood sugar. If I press too many times, which I have done whilst low, or when I think it hasn’t canceled, I have bolused by accident. Usually though, the pump beep beep beeps to tell me I haven’t finished a bolus, which alerts me to the fact that I was about to give myself a surprise one! Perhaps in your low state you heard the cgm alarm and thought it was an alarm for something else and tried to cancel it but gave yourself a bolus instead?

  • #9538

    Alison
    Keymaster

    Thankfully I’ve never done that. My magic pump average calculator tells me I’ve had an average of 49.95u per day over the last 14 days.

  • #9541

    Dave
    Participant

    Wow – new functions I never knew I had!

    To illustrate that everyone’s diabetes may vary my 14 day average, once I found it, is 24.875 – almost exactly half of Alison’s.

    Now where can I find the report that tells me how to achieve a good starting point for an evening basal test?

  • #9542

    Anonymous

    I’m with @alison probably about 50 units although I’d need to read the manual to find where my magic calculator is – I assume there must be one & I’ve never been able to find it.

    I’ve managed to stop the pump by laying on the buttons in my sleep & I came close to bolusing once, everything was dialed in but I hadn’t laid on the confirm button.

    I guess I’m lucky in that if my blood sugar steeply changes when asleep I wake up.

  • #9543

    Alison
    Keymaster

    Does your pump not have a “Lock keyboard” function? On the Medtronic Veo, it’s an option under “Utilities” and means you have to press two buttons together to unlock the pump so it would be virtually impossible to bolus in your sleep.

  • #9548

    Annette A
    Participant

    My daily totals vary from 25 to 35 depending on how much I’m eating/exercising/hormone levels etc.
    I can lock my pump, but I dont, because when I had a loan pump to try at the beginning, I managed to lock it then couldnt unlock it at all. Had to remove the batteries and leave for 20 mins so it reset the lock. So I’m petrified it would do that when I needed it – so I dont lock it. Never managed to turn anything on in my sleep, although I wouldnt put it past me (I have managed to feed myself in my sleep, whilst hypo, didnt wake up, next morning, found evidence, but no high bg, so must have been hypo…)

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