Lately I have been finding that dex comes in two flavors .. acceptable and not acceptable. The latter is when large corrections have to be made.
Last Monday I had breakfast at about 6:00 AM, went to work and had a particularly intense morning. I kept my eye on the dex readings but did not do a meter test during this time. At about 12:00 (noon) I went to work at home. While driving I began to feel really bad and when I got close to home I started to feel chest pains which I at first attributed to soreness due to upper body exercise the day before. Then I started to think that when I got home (I was close) I would call 911.
Throughout this driving experience I kept my eye on Dex which pretty much read about 180 the whole trip. I had tried to correct this a few times during the morning but the number remained steady.
At home at last, I checked my glucose (Dex reading still about 180) and the actual reading was 450!! Yikes! I never was that high. I immediately thought that the meter was wrong, but it was correct. I decided to quickly change the infusion set. When I took my shirt off I found the entire infusion set had fallen off (adhesive failure, I guess) and I had not been receiving any insulin since early morning.
DEX NEVER NOTICED!!! I changed the set and gradually came back to normal.
My four previous sensors had been pretty poor. Two, after some short time, gave ERROR 1, which is fatal. Two were just as erratic but never gave the notice. So, four bad sensors! I called Dexcom and spoke to a customer service agent who wanted the lot number, etc. which I actually was able to give him. He then went through a test to make sure I understood how to use the Dex even though I have been using it for about 3 years with no issues. He admitted I was doing everything right and sent me two sensors, but not the 4 that I wanted. He treated me like a moron (or a child) even though I have a PhD in physics!!
So, I think DEX almost killed me!! Anyone else seeing wild swings in senors (corrections over 100 points) or Error 1s? Or, perhaps, I am a moron.
Some time bad I did have some issues with a few sensors (we all have) but I called the sales agent and asked about it. With no hesitation, she sent me a free box of sensors. I wonder what has changed with Dexcom.