Sensor alarm

[Lynda T]

Can anyone advise me what to do. My sensor alarm went of at 4am. Yet read was normal. This has happened several times this week.

 

[Westley]

Is this a Libre2?
Using phone or the reader?

Do you have the 'Signal Loss' Alarm option on?
I always keep that off, because it does occasionally briefly lose connection, and I wouldn't want it beeping every time.

What was the reading when you checked?
Another possibility is that it was heading low and predicted* a hypo, but the adrenaline from being woken by the alarm was enough to nudge it back up so it never crossed the hypo threshold.

* the readings it gives try to counteract the ~15m delay from reading interstitial fluid by extrapolating the recent rate of change forwards. So the reading you see and which triggers alarms contains an element of prediction, and when you look back at the graph it might never have actually reached that level.

 

[Lynda T]

Is this a Libre2?
Using phone or the reader?

Do you have the 'Signal Loss' Alarm option on?
I always keep that off, because it does occasionally briefly lose connection, and I wouldn't want it beeping every time.

What was the reading when you checked?
Another possibility is that it was heading low and predicted* a hypo, but the adrenaline from being woken by the alarm was enough to nudge it back up so it never crossed the hypo threshold.

* the readings it gives try to counteract the ~15m delay from reading interstitial fluid by extrapolating the recent rate of change forwards. So the reading you see and which triggers alarms contains an element of prediction, and when you look back at the graph it might never have actually reached that level.

Hi Westly. Yes Libre 2. On my mobile.
I have set Signal Loss. Will knock this off like you suggested. But at 4 am I was in bed. Also different screen shows when signal lost, and this was not the case. My reading was 7. I have my low read set at 4.5 so get a warning before hypo. Thanks for replying Lynda

 

[barrym]

In bed there is something referred to as 'compression lows' where the sensor gets led on and affects the interstitial fluid or something, and gives a false reading. If I get a low alarm at night I tend to cancel it and see if it recurs after I've made sure I'm not led on it.

HTH

 

[Lynda T]

In bed there is something referred to as 'compression lows' where the sensor gets led on and affects the interstitial fluid or something, and gives a false reading. If I get a low alarm at night I tend to cancel it and see if it recurs after I've made sure I'm not led on it.

HTH

I didn't know that. Thanks for info

 

[aylalake]

I didn't know that. Thanks for info

I have now learned where best to site my Libre on my arm so that I don’t lie on it and set off the alarm! My cat was becoming a quivering nervous wreck