Insulin action issue

[Zhnyaka]

Sometimes it seems like my insulin (novorapid) is not working. Sometimes I have to do 3 injections for blood sugar to drop from 15 to normal, and sometimes I inject the same amount as I needed in total the last time and my blood sugar drops to dangerously low levels very quickly. I'm T1 for 18 years, but this has only recently started happening
I wonder if anyone else has stumbled onto that.

 

[Deleted member 527103]

You mentioned needing more insulin to drop from 15.
It is very common to experience insulin resistance when our levels rise to that level. I can need double the correction ratio when my levels are over 15 to what I would use to calculate a correction for around 8 or 9.

I have not used NovoRapid for a few years as I now use Fiasp. I find that the speed Fiasp works depends upon my levels. If am I in the 4s, Fiasp starts working instantly, If I am over 15, it can take an hour to appear to have any affect. This is very pronounced with Fiasp but I recent read someone experiencing the same with NovoRapid.

Would either of these things explain your recent observations?

 

[Zhnyaka]

You mentioned needing more insulin to drop from 15.
It is very common to experience insulin resistance when our levels rise to that level. I can need double the correction ratio when my levels are over 15 to what I would use to calculate a correction for around 8 or 9.

I have not used NovoRapid for a few years as I now use Fiasp. I find that the speed Fiasp works depends upon my levels. If am I in the 4s, Fiasp starts working instantly, If I am over 15, it can take an hour to appear to have any affect. This is very pronounced with Fiasp but I recent read someone experiencing the same with NovoRapid.

Would either of these things explain your recent observations?

That sounds about right. Thank you very mush!

 

[JAT1]

It may also depend on what you ate that drove you up to 15. It's my experience that not all carbs affect me equally.