[IP] Warning/Reminder: Read those Insulin Labels!!
Just a quick reminder to some and maybe a warning to others who haven't
had this happen yet.
On October 30, in the evening I was changing my infusion set and
refilling my pump. I asked my wife to get my new vial of insulin from
the refrigerator (it was the last of a pack of 5 I had bought) and I
filled my pump up.
The next day (I was off) I spent all day fighting high bg readings. No
matter what I bolused, my readings kept going up and up. Finally, after
changing my site once already, I decided it was time to start from
scratch and refill the pump and put in a new infusion set (this would be
the >third). I had already determined that the pump was pumping
insulin, we (minimed customer support and myself) just couldn't figure
out why my readings weren't going down. As I pulled the vial out of the
fridge for the "do-over" refilling I noticed the insulin was cloudy and
I seemed to remember that Novolog (and Humalog) are CLEAR insulin (NOT
CLOUDY). I called the Pharmacist at the Wal-mart where I get my insulin
and while I was on hold I noticed that they had mistakenly given me a
vial of 70/30 Novolog in my batch. Needless to say they felt horrible
and I got a replacement vial and my money back from them immediately. I
called my endo and he told me that 70/30 is basically 30% novolog and
70% NPH which meant all the bolusing I had done that day would kick in
later on. (Thankfully it was Halloween and I was taking my son
When we got home from trick-or-treating my sugar crashed to 30 but I was
surprisingly lucid (sometimes I'm not) and I ate and treated the low and
was fine. The moral of the story: CHECK YOUR INSULIN!! Sounds like a
simple thing, but it caught me and I've been doing this a long time! It
occurred to me that if someone was supposed to get 70/30 and they got my
Novolog by mistake the consequences would have been MUCH worse.
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