Lantus onset is typically at +2. We will suggest a +2 or +3 test to see if numbers are lower than at pre-shot. If that's the case, it may be a cycle when you have to get additional tests. You do need to get more than pre-shot test data since Lantus dosing is based on the nadir, not on the pre-shot numbers.
You do not have to feed 12 hours apart. Many people let their cats graze or feed scheduled small meals. (I would feed Gabby at pre-shot, +1, +2 and +3 because she had an early nadir and was prone to dropping low early in the cycle.) The only restriction on when to feed is to not feed 2 hours prior to shot time, as long as your kitty is in safe numbers.
You may want to add some additional info/update to your signature -- indicate when Chloe fell out of remission, the meter you're using, and once you're over on the Lantus board and comfortable again, which dosing method you're planning on using. There are 2 dosing methods -- Tight Regulation and Start Low Go Slow.
I think your dose may be a bit high. There's a formula for starting dose: initial dose = 0.25u x ideal weight in kilograms. If 5 lbs Chloe's usual weight? Using Chloe's current weight, you would be starting her on 0.5u. (FYI - Basaglar is a generic form of Lantus. Due to the exorbitant cost of insulin in the US, most people are buying their insulin from Canada from Mark's Marine Pharmacy. The price is about 1/3 of what it costs in the US. We have info if you need it.)
