What is the fundamental difference between T1 and T3?

Zhnyaka said:

For some reason, she was told to wait until bg was 10, and only then to inject insulin, both bolus and basal. What difference does it make when to inject tresiba if it lasts 42 hours?!

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Can she have misunderstood and this advice was only meant for her bolus?

Zhnyaka said:

When I said that if she has a lot of hypo, then she should reduce the dose, she objected that her doctor told her that she should not take less than 30 units of insulin per day and that her bg should not fall below 6. Why?!

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Does she get a lot of hypos? If not, this is only theory for now.
Her doctor advising her to try to not drop below 6 makes sense. She's new to the game, and you don't want a newly diagnosed insulin dependent diabetic to have serious hypos right away, initially aiming for between 6 and 10 isn't a bad thing until she has a better idea on her doses.

Insulin dosing is pretty much the same with T1 and T3C, but as you said, hypos can be more dangerous with T3C and a glucagon injection won't work if her complete pancreas was removed. This may be different if it was a partial removal.
[edit: after @EllieM 's reply I'm now starting to doubt myself on the glucagon injection, so please don't take my word for it until I or someone else has looked it up!]

Zhnyaka said:

To be honest, I have no desire to control anyone's diabetes other than my own, but my godmother thinks I can help her

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She's likely correct in that you can give her some insights.
But this definitely is not your job unless you want it to be.
And it's a very hard job because you're speaking from years of experience and she's only starting with the basics, and with doctors who are having their own ideas which may be contadictory to yours.
Don't let yourself be pushed into the role of a free diabetes nurse.

You're an IT specialist, what about you help her getting the hang of translation software and have her join the forum herself? That way you are supporting her but not becoming her nurse.

Zhnyaka said:

I was too young when I got diabetes, so it didn't cause any psychological trauma, but what kind of support did you want from your loved ones when it happened?

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It's different for everyone. I mainly wanted them to listen to all my ideas on managing my diabetes and ask questions out of curiosity, but I didn't have any insulin users among my family and friends.

EllieM said:

I thought the issue was that glucagon is produced by the pancreas, so a T3c may not produce any of their own, but surely a glucagon injection should still work? (It's stimulating the liver to produce sugar/glycogen.)

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I'm sure I've read this somewhere but I definitely don't have the physiological facts at the ready so I'll have to look it up. And I may have remembered wrong. But not today.
I'll add an edit to my post.

Zhnyaka said:

... To be honest, I have no desire to control anyone's diabetes other than my own, but my godmother thinks I can help her.

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My very personal opinion is that your godmother should
not be relying—or even worse—acting on any third-party
self-reported advice. She should be strictly following her
treating physician's advice, and the medication regime
he/she has set in place for her. And if she has concerns,
then she needs to make those clear to that treating physician,
rather than asking lay people.

And I know you mean well, but even suggesting that someone else adjust
their medications is treading on thin ice—[she should reduce the dose].

ausGeoff said:

She should be strictly following her
treating physician's advice, and the medication regime
he/she has set in place for her.

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The problem with this is that if we'd all followed our doctor's advice, there would be a whole lot fewer T2 members who are seeing non diabetic numbers unmedicated.
Most of us (including myself when I was misdiagnosed as a T2) were advised to eat lots of complex wholegrain carbs and as little fats as possible, definitely no need for home testing.

I'm all for following doctors advice, provided that I understand why the advice has been given.
I've learnt lots more about treating my T1 and insulin dosing from reading around the internet, and reading how others tackle things than a doctor or diabetes nurse could ever teach me.

Dosing decisions with insulin are very much a DIY thing after the initial guidance from your HCP, I can't call my endo 6 times a day to ask how much insulin I should take. The more a patient understands about dosing insulin, the better the outcome will be. So we partially have to educate ourselves.

ausGeoff said:

And I know you mean well, but even suggesting that someone else adjust
their medications is treading on thin ice—[she should reduce the dose].

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Hypos can and do kill. And they are caused by taking more insulin than you need. The dose of insulin someone needs is found through trial and error, some people need less than 10 units a day, others need 300 units a day and there is no way to tell until you try. If you see frequent hypos on your prescribed dose, you definitely should not keep taking that dose until your next quarterly appointment because your doctor told you to take no less than a certain amount.

Zhnyaka said:

And it seems that neither proteins nor fats are digested without enzymes.

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Does she take digestive enzymes with her food? Those are normally prescribed to T3C's.

Zhnyaka said:

She showed the doctor's message, and she got it right. I don't understand such a reaction for tresiba, I would understand if it were for protophan or lantus, but it's really strange for tresiba.

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Some strange advice indeed. Is this a GP type doctor or an endocrinologist?
Can she contact her doctor or nurse to ask her questions and have them explain the reasonings behind the advice?

Zhnyaka said:

my godmother is so hysterical about her diabetes that it's hard to communicate with her normally.

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Zhnyaka said:

my phlegmatic attitude like "nothing terrible is happening, it's just diabetes" is unlikely to be able to support anyone. Аs well as my behavior a la "you can eat whatever you want and do whatever you want, the main thing is to count the dose correctly and always carry sweets with you" is not good advice for a beginner. After all, I've been living with this for 20 years.

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Your attitude may well be useful.
I often tell the newly diagnosed on here that it's a marathon, not a sprint, and there is absolutely no need to get it completely right from the start.
As long as you can avoid serious hypos, you have time to learn and find patterns.