Blood Sugar changes-Freestyle Libre 2 vs Finger Prickle errors

[Deleted member 527103]

Hi @Bubbleblower ,

You could try scanning or taking a reading on you sensor. Then 20 minutes later use one of your meters & do a blood test?
The results may possibly look a little closer in range..

Hope this helps.

Is this true with Libre 2?
I understood, the Libre 2 does a pretty good job of predicting the 20 minute delay (unless you trend changes direction in that period).

 

[StewM]

Is this true with Libre 2?
I understood, the Libre 2 does a pretty good job of predicting the 20 minute delay (unless you trend changes direction in that period).

Yeah, the "unless your trend changes", I've certainly seen evidence of based on Blood Sugar readings and 'general feel'. For instance, Fiasp (because of its speed) can frequently make the reader think I'm going Low when I'm not.

Edit: Oh and taking Dextrose makes the reader freak out (in a way Libre 1 did not, to the same degree).

 

[Jaylee]

Is this true with Libre 2?
I understood, the Libre 2 does a pretty good job of predicting the 20 minute delay (unless you trend changes direction in that period).

I feel you've forgotten the BG meter has a lag of upto 20 minutes taking a "snapshot in time" at that point.
But i would agree the L2 does a reasonable job at working out where we are "now."

 

[Bubbleblower]

Is this true with Libre 2?
I understood, the Libre 2 does a pretty good job of predicting the 20 minute delay (unless you trend changes direction in that period).

The trend is your friend untill it ends.

The delay is actually only 2,4 minutes, from the same study I quoted earlier (funded by Abbott);
Accuracy of a 14-Day Factory-Calibrated Continuous Glucose Monitoring System With Advanced Algorithm in Pediatric and Adult Population With Diabetes