Glad to see you got the link fixed - thanks! Seeing the blood sugar tests in context is really helpful.
Now that you've got a spreadsheet going, I want to invite you to post in the
Lantus/Levemir Insulin Support Group. That will get you in the thick of things and people with the most experience with Lantus will be able to jump in and give you a hand. The responses are going to be faster there than here, and I'd like to have others keeping an eye out for you. You also won't be waiting for me to come home from work!
Don't worry about the lingo or the formatting that you'll notice - everyone is new at one point and people will help you get the hang of things. Just jump in with a post and you'll find everyone is extremely helpful.
Earlier several people have mentioned that there are 2 different dosing guidelines that people use on this forum. You're going to want to look at both and decide which one you want to start with - you can, of course, change your mind at any point, but telling us which direction you want to go will help us advise you appropriately:
Thanks for continuing to check for ketones.
My guess would be that Otto may have gone into some lower numbers after that +2/267 - the normal Lantus cycle typically has a +2 about the same as the preshot - which Otto's was - and then the blood sugar lowers over the next few hours before increasing to the next shot time. The bounce Sarah is talking about is what happens when a cat does one of two things - either their blood sugar drops quickly, say over perhaps 50 points per hour, or if the cat's blood sugar goes into a range lower than they are now used to. A cat that has gotten used to 400's can bounce from hitting 200, even. The bounce occurs because the cat's body perceives that the blood sugar is "too low" even if it's still high, or it's dropping fast enough that the body thinks there is an emergency. Then the pancreas and liver release stored sugars and counter-regulatory hormones that send the blood sugar back high. It's a protective mechanism that sometimes fires off when it shouldn't, although it also can keep a cat alive if they've been overdosed, for example.
If you have any test & dose information from before 2/27, it would be really helpful if it was put in the spreadsheet as well. You can go to the first row and click on the left side where it numbers the row (3), and it will highlight that row. Then move your cursor up to that top row right under where it says "Otto Insulin Template" and click on "insert." In that section, click "insert a row above" and VOILA, you'll get a row above row 3. Do that for as many days as you have data for and you can put them in the top of the spreadsheet. Especially since he was on a higher dose and you saw high numbers, having that info on the ss is pretty essential.
If you can post on the Lantus/Lev ISG that I linked above and let us know whether you want to use the SLGS method or the Tight Regulation Protocol that would be great!
Continuing to check for ketones and getting spot checks in on his blood sugar will help direct us where to go next.