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Tandem t:slim X2: "48T" Alert anyone?

Discussion in 'Parents of Children with Type 1' started by Dad_in_Canada, Aug 10, 2019.

  1. Dad_in_Canada

    Dad_in_Canada Approved members

    Joined:
    Aug 23, 2013
    Messages:
    95
    We started on the t:slim X2 in May of this year, moving from our Animas Vibe. This ofcourse brought the change to Dexcom G5 (from G4).

    Our experience with G5 has been the most frustrating experience in a while. We found G4 to be very reliable, but with G5, we often see a dreaded "48T" alert that indicates sensor errors. Once we see the 48T, the sensor is unlikely to recover. And it happens on a new sensor too (anywhere from a few hours to a few days old).

    Replacing the transmitter didn't help, and moving the sensor to different body areas didn't help.

    Has anyone else seen this 48T alert? I'm lead to believe it's fairly rare, yet we seem to be see it every couple weeks or so. And this alert isn't documented in any user manual as far as I can tell.

    Thanks!
    48T Alert.jpg
     
  2. Hayley Atkinson

    Hayley Atkinson New Member

    Joined:
    Apr 7, 2020
    Messages:
    1
    Hi there I know this is an old post but did you ever sort out the problem? I having the same issue and it’s driving me nuts!
     
  3. Dad_in_Canada

    Dad_in_Canada Approved members

    Joined:
    Aug 23, 2013
    Messages:
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    No, never really sorted it out. We saw a LOT of variability in G5 sensors. Some would last 2 days, some would last 2 weeks. Many calls with Tandem and Dexcom, but nothing really helpful (other than sending replacement sensors).

    G4 was much more reliable.

    We've now started on G6, only 2 days in, and hoping it will be a better experience than G5. I'll update after a month or so to let you know how it compares.
     
  4. Portabella

    Portabella Approved members

    Joined:
    Aug 11, 2014
    Messages:
    68
    We get "CGM Unavailable" with G6 all the time. It usually lasts less than an hour and recovers by itself, but if it doesn't, or if we have multiple errors in a day, then I call Tandem, and they send us a replacement sensor. They also said it can happen if there's not enough fatty tissue under the sensor.
     

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