I have just started my free trial Libre sensor. I also started new dexcom, and intentionally delayed Libre startup to make better comparison. Libre is on left arm, dexcom on right.
I inserted Libre Sat 2 pm, not realizing the startup time was 12 hours, so wished I had done it sooner. Started new dexcom 2:30 pm.
So started getting Libre readings at 2:10 am, but did some logs, half asleep.
F = flat
U = 45 arrow up
D = 45 arrow down
SU or SD if straight up or down, but haven’t gotten this yet.
Majority on both have been flat.
Time Libre Dexcom. Meter Bg
2:10a. 107 F, 125 F . 133
2:15a. 109 F, 130 F. 128
8:53a 100 F, 141 U, 125
9:03a. 108 F, 149 U,
11:32a. 86 F, 88 F,
12:18p. 85 F, 98 F, 94
Now 24 hrs since start Libre and dex. They are much closer.
2:07p. 127 F, 125 F. 135
3:51p, 154 U, 149 U,
4:34p, 105 chm
4:44p, 88 chm
5:05p, 65 chm
5:13p, 69 chm, 93 on Neo.
5:21p, 81 F,
5:50p, 103 F,
6:05p, 114 F, 110 F
6:17p, 115 F, 107 F, 122 BG verio
7:00p, 84 F, 85 F.
7:10p, 82 F, 83 F. 91 on Neo BG chk
8:07p, 48 F, 59 F. 87 on Neo BG chk
(Does not show arrow when there is the check symbol, noted above as chm)
The 3-430 ish time frame shows libre a bit confused. I was “snacking” at costco, walking, and gave bolus so was quite a bit going on BG wise. When I scanned, it kept giving me the indicator to check BG with meter, but I chose not to until I got home. At the same time dexcom was rising, to about 160, then fell quickly.