Hi
@ronialive, I use Novorapid in my insulin pump. And to check the basal rate program I do a
12 hours fast, say, 12 md (so no lunch and no bolus, no dinner, no bolus)) to 12 mn
WITH 2 hourly BSLs. That way I can see whether that 12 hours or so of basal program is working (nor save going more than a 12 hour fast and possibly developing ketones from I would then have a small meal with a bolus dose at 12mn). If I developed
low bsls in that testing I would know that
my basal program dosing was too high in places (and I would be more prone to gaining weight).
I would then several days later do a 12 mn to 12 pm fasting time with 2 hourly BSLs (and maybe match sticks to keep my eyes open !!). Then the same deal with the basal program. I would then wait a week or so and recheck each 12 hour basal programs.
I still at times have
problems with high BSLs after a meal (often it is to do with the meal itself and whether I am eating high GI and GL foods or not (see mendosa.com
. Glycemic Values for definitions and values for various food like cereals etc).
Having high bsls and then by taking a
correcting dose of short-acting insulin meant I was increasing the amount of sugar going into cells of the body, including fat cells. So looking at
diet, carbs, calories etc and discussing with a dietitian and looking at low or lower carb diets helped me. Low carb diets are apparently approved by NHS.
Also
Novorapid and similar insulins take 2 to 3 hours to reach a peak in their blood-sugar lowering effect, whereas the
blood sugar rise from a meal might peak at 100 to 120 minutes. So the
rise in blood sugar precedes the bolus insulin's maximal effect and BSL may be too high. But also sometimes the
short-acting insulin is of such a dose that it belatedly pushes the BSL down to hypo levels and the extra food needed for treating the hypo adds to weight gain, unless the problem of timing of sugar peaks and insulin peak effect are better matched. I take my Novorapid pump bolus , eat protein portion of my meal and 20 to 25 minutes later have the carb components of my meal. That seems to aid the match up for me.
What
Fiasp is advertised to do is reach its
peak effect by 2 hours or slightly earlier, to better catch the blood sugar rise. I have not used Fiasp and so cannot comment on whether it lives up to its advertising. There are individuals who believe it works better than other short-acting insulins in their insulin pumps.
I would ask you to think about the above, which is from personal experience and not professional advice or opinion, and consider doing some BSLs measurements as above and discuss with your dsn/doctor before deciding further. Best Wishes.