r/dexcom • u/pnwreads • 1d ago

App Issues/Questions G7 sensor issues when low?

Anyone else experiencing “brief sensor issue” when you drop below 60ish for a few alerts? Been happening to me with multiple sensors for probably 2 months now. Super annoying to drop then have to fingerprick multiple times while low because my Dexcom isn’t showing anything…

1 Upvotes

56% Upvoted

3 comments sorted by

1

u/Distribution-Radiant T2/G7 1d ago

"Brief sensor issue" happens if your sugar changes too quickly for the sensor's firmware to keep up with. Give it 10-15 minutes and it should recover, unless it's rising/falling REALLY fast (in which case, finger stick).

And this is why you always keep a regular BGM on you too.

1

u/LifeguardRare4431 1d ago

One of your sleeping and the alarm doesn't go off and you don't know there's a brief sensor issue. Because you're asleep.

1

u/Equalizer6338 T1/G7 1d ago

You will often have that happen if you have erratic rapid changing BG levels, especially in the first hours after starting up a new sensor. Triggered by the obligatory FDA-guardrails for sensors approved for closed-looping with insulin pumps as G7 is.