Question on how best to reduce dose during a low curve

[KylieR]

Hello!
This is the first time I've ever posted here.
I've been dealing with a diabetic cat for several years now and yet I still somehow managed to space and ended up putting my 10 year old girl Emma into a risky situation.

For context she's on 9 units of lantus twice a day.
She gets fed a can of wet food (hills metabolic weight management stew) with her injections (7am/7pm) and also gets a small amount of diabetic dry food at 1pm/1am (she was not having the only eating twice a day thing so it was compromise to give her a small amount of diabetic dry food half way between breakfast/dinner)

Her sugars have been well managed over the years but this week a combination of my vet increasing us to 9 units after a high curve last month and me trying to find ways to help her lose some weight (the dry snack times used to be an 1/8 of a cup but I found a machine that will dispense 1/16 of a cup instead which I started on Monday) have led to a very low curve today.

At 7am she was at 68 on my Relion machine, and I should have known better than to give her the full 9 units. I don't even know why I spaced like that.
At 9 she pulled up to 104 but after that ever two hours she's been hovering at the 40s

She's not acting like anything is wrong, she's happy to get extra treats I'm giving her out of fear of those numbers dipping even lower. She's playful and snuggly.

I'll be sending those numbers to my vet tonight and she'll most likely get back to me tomorrow but I find myself wondering what the best course of action is with Emma's insulin tonight.

I haven't found myself in the position of her numbers being so low that I was at odds about what to do with her next dose before, I've been reading things about reducing the amount from 10 to 50%
So I'm just wondering if there's a rule of thumb on how to decrease units when sugars are low.
In the past when she's not been allowed to eat because she's going to the vet for something I've been instructed to only give a half dose. Same when she'd been ill and wasn't eating.

So I'm thinking I should only give her half the dose tonight, but I'm just unsure.

Here's some cat tax attached!

 

[Wendy&Neko]

Emma sure is a cutie! Welcome to the both of you.

I'm glad to hear you are home testing, but 9 units is a rather larger dose of Lantus than most cats see. It's sort of lucky she is on higher carb food from the vet. Most of us don't feed the vet foods. The higher carb food you are feeding may be helping to keep her safe. But it looks like you need to give her something even higher carb now. Can you put a drop or two of karo or honey on some wet food and see if that brings her up out of the 40's? We really want her above 50.

We won't give dosing advice until we get a better look at the blood glucose (BG) testing data you've been collecting. I will say that 9 units is too high. If you were following one of our dosing methods, it would be at least a 0.5 unit reduction. Possibly more, depending on the data. If you have time, in between getting Emma into higher numbers, would it be possible for you to put the last couple weeks of your test data into the spreadsheet format we use? Here are the links:
FDMB Spreadsheet Instructions:

• Please set up a Google Spreadsheet as soon as possible. Always keep spreadsheets up-to-date! Valuable time may be lost looking for information when a spreadsheet is not up to the minute.
• If you have not been able to transition your kitty off of DRY food yet, please note it on your spreadsheet and in your signature. A dry food diet will often require higher doses of insulin to bring numbers down. Having this information plainly visible will help us help you.

Understanding the Spreadsheet/Grid