Meter accuracy is not a new issue.
As I wrote in a post on my other blog back in May, usually my meter and my CGM match up close enough that I don’t spend too much time thinking about the results. That day however, I had results that were 100 points different from each other within one minute. Three test strips, one DexCom, and I still had no idea what number to believe.
At Friends for Life, I received a coupon for a free meter from Nova. When I first started pumping in 2004, Nova was the brand that was linked to the MiniMed pump, but I remember nothing but accuracy issues from that time. I trusted OneTouch and doubted Nova. Now I’m not sure who to believe.
The new Nova meter came with 10 strips which I used to conduct a little experiment. I wish it wasn’t so difficult to get test strips because I’d love to try a few different meters at the same time, but not enough to pay out of pocket (at $1 a strip) for them.
The past two weeks or so, I use different situations (high, low, steady, dropping, etc) to see if I could find some sort of pattern (Kerri also recently checked out accuracy).
We seem to all agree on this one. Time for a snack.OneTouch loses again.They all agree that it is time for a snack.Different night, same snack.Note the time on this one. Can I also point out that this is why I am frustrated.
A lot of the time they all agree, but then sometimes it’s a mess.I had inserted a new DexCom sensor so I was waiting for it to warm up. Totally surprised by the results at 11:30. Then at 12:30, I was frustrated by the difference. How quickly was I dropping?
Since the OneTouch didn’t agree with itself (?!), I got out the other meter for a comparison. That is a pretty significant different when I am worried about dropping too quickly.Same night – at 1 am, another Nova comparison. Since I didn’t have a CGM ready as back-up I really wanted to know if I was still dropping before bed. I was, but by how much?
I have absolutely no idea what to do next. Other than put all my meters somewhere special.