You sound a bit panicky, and I'm wondering if she needs another vet visit. Having blood sugar in the 200's (we use US numbers on this forum, and that's equivalent to the yellows you're getting) isn't a crisis situation. But if she's weak and not eating, that is. Just looking at her blood sugar it doesn't look like she's in trouble, but you are there with her, and you know her, and if she's doing poorly I'd take her to the vet again. Her blood sugar isn't high enough on its own to be causing weight loss, I don't think.
Below is the info on starting out on Lev and on increasing if you're following the
Tight Reg Protocol. I think because of your situation and concern about the high blood sugar, and because you do test enough to keep her safe using Tight Reg, i'd go that direction rather than the
Start Low Go Slow. Wendy's right about normally holding the initial dose for 5-7 days, but there is an option that I've bolded, of increasing after 3 days if the blood sugar tests tell you that this dose is definitely not enough because the cat is staying flat and high. Usually we'd call over 300 (pink numbers) as flat and high. You're getting yellow numbers.
You're right that there is a dosing formula for those following Tight Reg that provides a ballpark starting dose, and that the dose on the previous insulin is also taken into account. Could you possibly add in just the data from the last week on Caninsulin so we can see it in context on the spreadsheet? Did you think 3u on Caninsulin was the right dose? This actually doesn't look too bad for a start on a depot insulin. Since she's getting into yellow numbers on just the 1u, 2u might be too much. There's nothing in her spreadsheet that would make me think you should make a large dose increase, certainly not an entire unit. It's hard to say, but it's safer to start with a lower dose and increase methodically so you don't overshoot the right dose. As you have seen, too much insulin can cause high numbers that look a lot like too little insulin.
You can't hurry building the depot that comes along with Lantus and Levemir. Take a look at
this sticky, especially the first link that is called "Lantus and Levemir: What's the Difference?" - reading that will help you greatly in understanding why you don't make dose changes too quickly. I think I would give it 3 days (6 cycles) on this dose, then increase by 0.25u if she still isn't getting anything less than yellow. That probably sounds like it wouldn't do anything, but 0.25u can make a big difference. Then I would re-evaluate every 3 days after that and increase until you're getting nadirs in green numbers. When we see kitties that have passed the first week on insulin who are staying in pink numbers or higher, sometimes we'll suggest they "fast-track" meaning increasing every 4 shots. But Barsa is definitely not high enough for that.
And welcome to LL! Keep asking questions and we'll do our best to help you help Barsa. It would be great if you could post regularly so we can keep an eye on what she's doing on the dose and give you feedback if you need it. I'm glad Wendy suggested that you take a look at both dosing methods - we need to know what direction you want to go before we give dosing advice. The info below only goes with Tight Reg, so if you want to go with SLGS, this doesn't apply.
REQUISITES WHEN FOLLOWING A TIGHT REGULATION PROTOCOL WITH LANTUS OR LEVEMIR:
- Kitty should be monitored closely the first three days when starting Lantus or Levemir.
Blood glucose levels should at least be checked at pre-shot, +3, +6, and +9.
More monitoring may be needed.
- It will be necessary to test kitty's blood glucose levels multiple times per day.
- Use U-100 3/10cc syringes with half units marked on the barrel for fine dosing.
- Feed a high quality low carb canned or raw food diet.
- Feed small meals throughout the day. Some kitties adapt well to free feeding.
Many Lantus and Levemir users in this forum have been successful following a somewhat
modified version of this
Tight Regulation Protocol for the last few years. These "general" guidelines are based on anecdotal evidence and personal experiences of laypersons frequenting the forum.
(Revised 10/28/2013)
"General" Guidelines:
- Hold the initial starting dose for 5 - 7 days (10 - 14 consecutive cycles) unless the numbers tell you otherwise. Kitties experiencing high flat curves or prone to ketones may want to increase the starting dose after 3 days (6 consecutive cycles).
- Each subsequent dose is held for a minimum of 3 days (6 consecutive cycles) unless kitty earns a reduction (See: Reducing the dose...).
- Adjustments to dose are based on nadirs with only some consideration given to preshot numbers.