Note to Tina and all helping: Doodles’ SS is now up and I think I have all the info up to +4.5 entered for Tina. That should help everyone see the patterns and discuss a dose.
Tina: As Wendy was explaining, lantus is a depot insulin. That means that part of the shots you give when starting out or increasing a dose go towards building this depot and part goes towards working to bring the BG down. When the depot is overfull, numbers come way down and a reduction is needed. In a case like this where it seems you have way too much of a depot (I think the vets raised the dose way, way too high too fast when the dose should have been dropped), it’s a good idea to “drain” it. Think of it like a bucket of water that is overflowing; you have to drain the bucket to keep the water from going over the sides.
The depot from a larger dose can affect the BG for up to six subsequent cycles after it has been reduced but I have seen at least two cases where it affected the BG even longer. We’ll stay optimistic that this won’t be the case with Doodles. By reducing the dose to 1u, it lets the “dust” settle by draining the depot and then we can get a clearer picture if he needs more or less insulin.
BTW, the numbers he had on the first curve on 9/27 when he was on 2u really look to me like he was getting pretty low on that dose and then bouncing way back up. Just a guess, but I’ve seen a lot of spreadsheets and a lot of low numbers followed by those high ones.
It’s a good idea to grab another test in an hour just to be sure he continues up.